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Flying Skull Z7 Enzyme Cleaner (1 or 2.5 Gallon)
Flying Skull Z7 Enzyme Cleaner (1 or 2.5 Gallon)
Flying Skull Z7 Enzyme Cleaner (1 or 2.5 Gallon)
Flying Skull Z7 Enzyme Cleaner (1 or 2.5 Gallon)

Flying Skull Z7 Enzyme Cleaner (1 or 2.5 Gallon)

Brand: Your Grow Depot
Item Number: FSMI013

Regular price $185.85 $135.00

  • Estimated Arrival: Between Jun 26 and Jun 27. *ETA for Continental USA only

    FREE Shipping for orders over $200. *See Shipping Policy for details.

    Why Buy From Your Grow Depot

    Not for Sale in Maryland and Canada
    What is Z7?

    Z7 is the biggest technology breakthrough in the last 50 years for growers and the plants they love!

    Z7 is a super concentrated, two-part, commercial enzymatic cleanser. For best results, use Z7 at every watering or feeding; Field growers should apply Z7 whenever possible to keep pipes and drippers from clogging.

    Z7 is super concentrated and economical for indoor and commercial growers; It costs only 2.5 cents per gallon of nutrient treated (calculated on the MSRP). A one gallon set of Z7 treats 7,570 gallons of nutrient.

    Why do you need Z7?

    Other cleansing products that contain Enzymes, Hydrogen Peroxide, Colloidal Silver or whitening products may not do the job that Zdoes. Many growers pay for multiple products and still don’t see the improvement in properly cleansed pipes, tanks, sprayers and drippers that Z7 can do all by itself!

    Cleanse your plants and equipment with the new Z7 Technology

    No other enzyme cleansing product on the face of the earth can compete with Z7 when comparing cost savings for growers and plant growth performance. We have not had a single customer complaint after they used Z7; even those using the worst well and irrigation pipes and tanks. Z7 helps you keep money in your pocket to spend on other things.

    • Helps to eliminate the need for dangerous, Chlorine, Hydrogen Peroxide products.
    • Helps to eliminate plant death from plugged sprayers and drip irrigation
    • Helps to keep irrigation equipment and pumps clean and working properly
    • Helps to reduce maintenance costs and reduce energy costs by keeping equipment clean
    • Helps to reduce labor costs
    • Helps to reduce water usage
    • Z7 is skin contact safe


    We get so many questions regarding the cost of Z7 compared to other products. Z7 is applied at ½ mL per gallon of water. Z7 is many times stronger than other enzyme type cleansing products.

    No other enzyme cleanser on the face of this earth can compete with Z7 when comparing cost savings. Z7 keeps money in your pocket by keeping your equipment and your plants cleansed while they are growing!

    Did you know that stand-alone enzyme cleansing products can cost up to 30 times more to use than Z7? Most enzyme products are so expensive that most growers can't afford to use them. Z7 cost as little as 2.5 cents (MSRP) to treat a gallon of water. How can you beat that!

    Why shouldn't you use sanitizing or sterilizing chemicals to cleanse pipes and tanks?

    Most of these types of chemicals can hurt the semi-permeable membrane of the root where osmosis takes place.

    System Cleanser:

    Z7 helps to keep hydroponic roots, piping, sprayers, tubes, and tanks cleansed while the plants are growing! Z7 will reduce many hours of cleansing between harvests and in most cases eliminate taking the hydroponic or irrigation systems apart. This will reduce downtime, reduce labor costs and help minimize the replacement of foggers, tubes, pipes, sprayers, drippers, and pumps. The reduction of plant death due to clogged drippers, tubes and sprayers will pay for using Z7. All the other benefits of Z7 is free and money in the pocket.

    Z7 is not a sanitizer, sterilizer or cleaner designed to kill bacteria. It will not harm living things when used as directed.


    Z7 is compatible with any hydroponic plant food (organic or chemical).


    The set of 8-ounce bottles will treat 473 gallons of nutrient or water.
    The set of 16-ounce bottles will treat 946 gallons of nutrient or water.
    The set of 32-ounce (quart) bottles will treat 1,892 gallons of nutrient or water.
    The set of 1 Gallon bottles will treat 7,570 gallons of nutrient or water.
    The set of 2.5-gallon bottles will treat 18,925 gallons of nutrient or water.
    The set of 5-gallon buckets will treat 37,850 gallons of nutrient or water.

    Use the guide below to determine dosage for your tank size. Add together tank sizes to determine your needs. Shake the bottle thoroughly before dosing.

    1/2 cc/mL per Part A and 1/2 cc/mL per gallon Part B for every gallon of nutrient solution.

    5-gallon nutrient tank: Use 1/2 teaspoon Part A and 1/2 teaspoon part B
    10-gallon nutrient tank: Use 1 teaspoon Part A and 1 teaspoon part B
    15-gallon nutrient tank: Use 1.5 teaspoons Part A and 1.5 teaspoons part B
    20-gallon nutrient tank: Use 2 teaspoons Part A and 2 teaspoons part B
    50-gallon nutrient tank: Use 5 teaspoons Part A and 5 teaspoons part B


    Directions and Dose:

    Hydroponic Systems:

    Shake thoroughly. Apply to the tank after the nutrient has been pH adjusted. Apply at every nutrient tank change. Do not use more than the recommended dose. Z7 only works on surfaces it continuously comes in contact with. Use 24 hours a day 7 days a week while the plants are growing. Add every three days to hydroponic and aquaponics tanks that are in recirculation.

    When introduced into a contaminated hydroponic system Z7 will go to work to eliminate inanimate slime, inanimate slimy conditions, plant waste, organic particulates, cloudy water, odors and mineral buildup on roots or irrigation hardware. For hydroponic systems, it is normal to see cloudy or dirty nutrient when changing the nutrient tank until the hydro system has been cleansed and operating normally. When introduced into a freshly cleaned or new hydro system Z7 will maintain an internally cleansed hydroponic environment and prevent inanimate slime, inanimate slimy conditions and mineral build up on roots and equipment. At the same time Z7 is cleaning each individual root, it is opening up microscopic passage ways that were blocked by organic and mineral build up. This not only allows the plants to feed easier, but the grower can start to reduce the amount of fertilizers and water fed to the plants. Grower Note: reduce fertilizer and or water slowly and observe plant growth. Even though the plant can bring in water easier it will still need to be watered more often when atmospheric conditions dry the growing medium and transpiration is at high levels.

    Dosage:Use 1/2 cc Part A and 1/2 cc Part B for every gallon of nutrient solution. Or 1tsp of Part A and 1tsp Part B for every 10 gallons of nutrient solution. More Z7 is not better. Stay with the recommended dose.

    Soil Cleanser:

    For established plants having problems, mix up the Z7 in water. Pour as much Z7 treated water through as the pot as it takes to thoroughly wash all minerals from the soil. For plants being transplanted into virgin soil, apply enough Z7 to soak the soil. The Z7 runoff from the soil should match the EC/PPM of the water supply, and then you will know you did a proper flush.

    Z7 in the ultimate water conditioner. When introduced into a contaminated irrigation equipment that uses sprayers or drippers, Z7 will go to work to eliminate inanimate slime, inanimate slimy conditions, plant waste, organic particulates, cloudy water, odors and mineral buildup on roots, growing medium, irrigation hardware and pumps. When introduced into a freshly cleaned irrigation equipment system, Z7 will maintain an internally cleansed environment and prevent inanimate slime, inanimate slimy conditions and mineral build up. At the same time Z7 is cleaning each individual root, opening up microscopic passage ways that were blocked and restricting osmosis.

    Dosage: Use 1/2 cc Part A and 1/2 cc Part B for every gallon of nutrient solution. Or 1tsp of Part A and 1tsp Part B for every 10 gallons of nutrient solution. More Z7 is not better. Stay with the recommended dose.

    Soil Field:

    Applications of Z7 should be, at least, performed at time of planting; (cuttings, first container and at time of field placement). If just two or three applications are to be administered, applications should be done at times of fertilization. If possible, apply enough to soak soil so that the roots will grow into the treated areas. The more application during the growing season the better.

    Applications of Z7 should be, at least, performed at time of planting; (cuttings, first container and at time of field placement). Any other applications should be done at times of fertilization if possible. If possible, apply enough to soak soil so that the roots will grow into the treated areas. Z7 will reduce soil to nano size particles for easy osmotic uptake. The more treatments the better but one application will show great improvement in plant health.

    To clear out old toxic problems in the soil: Mix up Z7 in water. The first thing that any soil grower should do when using Z7 is to flush all of the toxic junk out of the soil. This very, very important. To do this mix up the Z7 in water. If your plant pot is a 1 gallon pot, pour as much Z7 treated water through as the pot holds. In other words pour 2 gallons of Z7 through a 2 gallon pot. This will get off to an excellent start! A better recommendation would be to use three times the Z7 treated water as the pot hold for a flush!

    Dosage: Use 1/2 cc Part A and 1/2 cc Part B for every gallon of nutrient solution. Or 1tsp of Part A and 1tsp Part B for every 10 gallons of nutrient solution. More Z7 is not better. Stay with the recommended dose.

    Top feed systems:

    Z7 greatly reduces the chances of sprayers and drip irrigation systems from plugging. Z7 will not allow mineral build up or organic particulate to clog leaf stomata, allowing for better water and fertilizer transfer into the plant. Tubes and orifices will remain open for better plant growth. Sand and silt filters are still needed on pumps and local water supplies downstream prior to the irrigation system.

    Fertilizer and Water Reducer:

    Z7can reduce the cost of fertilizers by as much as 25% although some growers report a 30-35 percent reduction in fertilizer use. Flying Skull Plant Products publishes and reports the lower number until further studies have been done. Less fertilizer nutrients and water usage are needed because the plant root s cell structure, water mineral content and plant food particle size is more conducive to the osmosis process.

    Leaf Spot Reducer:

    A dramatic decrease in leaf spot is observed when the grower uses overhead watering systems. Minerals and organic materials are less likely to form spots and in most cases, should there be any residue, it can easily be wiped or blown off the leaf.

    Mixing and Dosage Equipment:

    Z7 is compatible with mixing and auto dosage systems. It is mixed at ½ cc of each part per gallon. Growers can add Z7 to water to make it less concentrated for equipment that can t be dialed in at super low doses.

    The set of 8 ounce bottles will treat 473 gallons of nutrient.
    The set of 16 ounce bottles will treat 946 gallons of nutrient.
    The set of 32 ounce (quart) bottles will treat 1,892 gallons of nutrient.
    The set of 1 Gallon bottles will treat 7,570 gallons of nutrient.
    The set of 2.5 gallon bottle will treat 18,925 gallons of nutrient.
    The set of 5 gallon bucket will treat 37,850 gallons of nutrient.



    Naturally steeped system and root cleanser


    Return/Exchange Policy

    YourGrowDepot.com allows returns on products that are in new condition and are returned in the original packaging within 30 days of purchase. "New condition" means that the product is in the same condition as it was received in. All returns must be called in or emailed in advance. Please call 1-888-854-GROW or email Help@YourGrowDepot.com for a Return Merchandise Authorization number (RMA) before shipping the product(s) back to us. Return shipping and insurance charges are the responsibility of the customer. Any merchandise returned without a RMA or any merchandise returned freight collect is subject to being refused.

    Order Cancelations

    When a new order is placed Your Grow Depot immediately expends energy, time, and care toward the completion of the ordered product(s). Orders canceled after shipping from Your Grow Depot’s facilities are subject to a 20% restocking fee, which covers the incurred costs associated with managing returns.


    • Due to the nature of some products we are unable to accept returns for them.
    • All returns must be called in or emailed in advance and given a Return Authorization Number (RMA #). Only items originally purchased within 30 Days from the date of delivery will be considered for return.
    • A Return Authorization Number (RMA #) is required before any replacement claim will be accepted.
    • Keep the Return Tracking Number (RMA#) from the package you are returning to ensure that the package is returned to the warehouse.
    • Please DO NOT throw away the original packaging your order came in. All returned merchandise must be in its original carton or packaging to be eligable for a refund.
    • The item must be shipped back with care as not to be received damaged.
    • Enclose a copy of the original invoice.
    • All products must be returned in new resaleable condition, in the original boxes to ensure full credit.
    • Products damaged by neglect or abuse will not be covered by warranty and may not be returned.
    • Returns are not accepted on products that have been altered.
    • For a full system return, we will create the bill of lading and make the shipping arrangements for you. We will then issue the credit minus the cost of shipping both ways once we have received the system in new resaleable condition.
    • You can expect a refund in the same form of payment originally used for purchase usually within 5-10 business days of Your Grow Depot
      receiving your returned product. Delays may be experienced in the case of incomplete returns.
    • Missing accessories will result in a reduced credit amount by the actual replacement cost of those items.
    • The Shipping, Handling and Insurance Fees paid by the buyer are NOT included in the return credit issued.
    • Return shipping and insurance charges are the responsibility of the customer.
    • All returned merchandise is subject to a 20% restocking fee, this includes the processing fee.
    • Clearance items are FINAL SALE ITEMS, no refunds allowed. 


    Free Shipping:

    Order totals of $200 or more and up to 75 lbs are shipped for free in the Continental United States. Some exclusions apply. Products excluded from Free Shipping will be identified on the individual product page. If your order does not qualify for free shipping the shipping fee is based on your order’s weight, package dimensions, delivery destination, and shipping method. We do not charge handling fees or pad our calculated shipping rates.

    If you are located outside of the Continental United States you will be charged shipping. If you are located outside the United States you will be responsible for shipping and any import fees. Please contact us with any questions prior to ordering if you are outside the Continental US.

    Your Grow Depot reserves the right to notify you of any additional shipping charges necessary to deliver your order. We do our best to ensure that shipping is accurately calculated in your shopping cart at the time of purchase, however, at times, it may not be possible to do so accurately (e.g. rural delivery locations, shipments requiring multiple pallets, living on an island, etc.). Should this occur, you will be notified of any additional charges necessary to deliver your order. If you are notified of any additional charges, you will have the right to modify or cancel your order for a full refund.

    Order Confirmation:

    As soon as you place your order, you will receive an order confirmation email to the email address provided. This means that we have received your order in our system and have authorized the charges to your credit card.

    We try our best to get orders processed on the day it is placed if the order is placed before 11 AM MST Monday through Friday. Most in-stock items are shipped within 24-48 business hours of the order being placed with the exception of select custom and built-to-order products. Orders placed over the weekend are received and processed as soon as possible on Monday morning.

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    Once we authorize the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the email address you provided when checking out. Your order is shipped via FedEx, UPS, or USPS. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at Help@YourGrowDepot.com or 888-854-GROW.

    *NOTE: SUPERCLOSET COMPLETE SYSTEMS ONLY (Cabinets, SuperRooms) – Complete Systems are built to order and have an estimated production time of 2-3 Weeks. Shipping time is estimated at 3-5 business days. Please allow a maximum of 3-4 weeks for a complete system to reach its final destination. These are long estimates to account for unforeseen production delays. It is typical to see complete systems well before these estimates.

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    If you order more than one item, we’ll make every effort to send available items together. Depending on availability, an order may ship from several locations. If we decide to break your order into multiple packages, you will NOT incur any additional freight/shipping charges. Tracking information will be sent to the email address provided on the order for each portion of the shipment.

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    In the event that you have ordered expensive machinery and would like it insured for the full replacement value during shipping it is an additional charge.

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    This shipping method is reserved for large, heavy, or oversized items like, flood trays, large tents, oversized reflectors, commercial air conditioners/dehumidifiers, etc. These select items are palletized, loaded onto a large truck for shipment and delivered by scheduled appointment with a lift-gate for to-the-curb service. All items must be inspected for damage incurred in transit and signed for prior to the driver leaving.

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    Scheduling Delivery Appointments:

    If you are not available by phone or email to schedule your delivery appointment within a reasonable amount of time, the shipment will be considered refused and you are responsible for full freight charges and applicable fees going both ways with a minimum 20% restocking fee.

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    Shipping to an Alternate Address:

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    Providing inaccurate or false information may result in additional delays as we attempt to verify the provided information.

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    We understand the importance of privacy for many of our customers. Most orders placed on YourGrowDepot.com are shipped in plain brown boxes.

    All palletized (LTL/Freight) shipments are wrapped for your privacy in an effort to conceal the contents of the goods shipped.

    Shipping Changes Fees (Address Intercept):

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    If incorrect shipping information is given, it may result in your order being delayed to the desired destination.

    Damaged Shipments:

    Please inspect all shipments carefully for damage or missing items prior to signing for them (if required). The freight carrier often denies claims after the shipment has been signed for. In the unforeseen event your shipment arrives damaged, please report any damages or missing items to the delivery driver, note any issues on the delivery receipt, and contact Your Grow Depot immediately.

    If you sign your name on the freight bill without noting any damages, you are stating that you have received your shipment/order in acceptable condition. Once signed for, there will be no reimbursement of freight charges, order costs or any other charges incurred by you from Your Grow Depot.

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    To cancel an out of stock item contact customer service at 888-854-GROW or send an email to Help@YourGrowDepot.com and we can further assist you.

    Signature Required:

    Due to the valuable contents of some shipments, Your Grow Depot may require a signature upon delivery. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our company to guarantee excellent service and to ensure the safe delivery of each package to the correct recipient. Many of our third-party shipping carriers require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by calling Your Grow Depot Customer Service at 888-854-GROW.

    Your Order Shows Delivered But You Don’t Have It:

    If your tracking number shows delivered on the shipping company’s website but you don’t have it, please do the following:

    • Check the area around your home for the package and ask anyone it may have been left with.
    • If the package is not found please contact us at 888-854-GROW as soon as possible.

    Occasionally there may be a mix-up in the warehouse and you may have received an incorrect tracking number. If the tracking number is correct, we will contact the shipper to report a missing package.

    Your Grow Depot can not be held responsible for packages stolen from the delivery address so please be sure to ship to a secure location!

    Shipping Disclaimers:

    There are rare and unforeseen events out of our control that may effect shipping times. Severe weather conditions, catastrophic events, or failures by our delivery partners can cause unexpected delays.

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    Hazardous Materials & State Restrictions:

    EPA-regulated items such as repellents or insecticides may be restricted for sale in some states. You will be notified by one of our team members if an item cannot be shipped to you due to state regulations.

    We know that when you shop online it can be hard to know if you’re getting the best deal. That's why we work very hard to ensure that we offer the absolute best prices online...we want your experience with us to be 100% stress-free.

    There is no need to worry about finding a better deal online...you can relax.


    We offer this price match guarantee because we want you to be able to shop with confidence and not have worry about if you’re getting the absolute best deal online. With us, you always are. 

    Our promise to you is simple. If you find another store online that is offering a better price any time within six months of making your purchase, just let us know and we will refund the difference.  

    To request your partial refund simply e-mail us at Help@YourGrowDepot.com with a link to the same product on our website or on our competitors' website within six months from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee.
    • Promotions such as rebates and buy one, get one free offers are not eligible.
    • Products that are on sale are not eligible.
    • The item must be in stock on the competitors website.
    • The competitor must be an online store, they may not have a retail location.
    • The website can not be a discounter or auction website (ie; eBay, Overstock, Amazon, etc..).
    • The competitor must be an Authorized Retailer of the product in question.
    • The Price Match Guarantee includes the item price, it excludes sales tax.
    • The following Brands are excluded from the Price Match Guarantee:
      • Across International
      • Dealzer
      • EZ Trim
      • Hydro Crunch
      • HydroFarm
      • CenturionPro - Parts
      • Zelda Horticulture
      • SolisTek
      • VectorFog