Liquid Science | Pure Guard 1L|5L

Pure Guard – Premium Root Zone Prophylactic Treatment

Pure Guard is a preventative solution formulated to protect against fungal infections, mould outbreaks, and related root-zone pathogens before they can establish. Trusted by experienced hydroponic cultivators, Pure Guard stands out as one of the most effective and reliable prophylactic treatments available on the market.

Derived from natural, plant-based sources such as soybean extract, Pure Guard is non-toxic, non-systemic, and completely safe for use around people, plants, and pets. Unlike traditional chemical-based fungicides, Pure Guard offers peace of mind for both commercial and home growers seeking an eco-friendly alternative.

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Why Choose Pure Guard?

• Certified Safe & Environmentally Friendly: Pure Guard uses an organic dispersant and a non-ionic surfactant to effectively cleanse and condition all surfaces in contact with the root zone, without relying on synthetic chemicals or petroleum-based agents.

• Non-Systemic Action: No residue. No with-holding period. Completely safe to use throughout your cultivation cycle, including close to harvest.

• Effective Cleaning Agent: Works as a standalone cleanser and surface conditioner to help reduce the occurrence of root-borne diseases.

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Important Usage Notes

• Foaming: When introduced to nutrient tanks, Pure Guard may cause temporary foaming—this is normal and does not harm plants. Always turn off air stones or other oxygenation equipment during dosing.

• Compatibility: Pure Guard should be used as a standalone treatment and is not compatible with other root zone stimulants, treatments, or microbial additives. It does not promote beneficial microbial growth and is best avoided if microbial inoculants are part of your regimen.

• Plant Sensitivity: Due to variability in plant genetics and growing conditions, we recommend conducting a small-scale test prior to widespread application.

• Storage: Keep in a cool, dark place away from heat or light to maintain product integrity.

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Applications

Pure Guard has been carefully developed to target a wide spectrum of issues such as mould, mildew, algae, and related root zone pathogens across various indoor and outdoor growing systems. It is ideal for use in recirculating hydroponic systems, coco, soil, and rock-wool based media.

For dosage rates and environment-specific recommendations, refer to the application guide below or speak to one of our in-house experts at A-Grade Hydroponics, Melbourne’s premium hydroponic supplier.

*All orders are dispatched in unmarked boxes to maintain your privacy.*

DISPATCH AND DELIVERY

Orders are shipped via Australia Post or shipping platform Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email grow@agradehydroponics.com to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be offered by the carrier.

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.

SHIPPING COSTS

All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should shipping costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees. We will notify you if this rare situation occurs.

A-Grade Hydroponics reserves the right to cancel the order if shipping costs become prohibitive and customers will be issued a full refund.

PAYMENT

All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay, PayID or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.

FULFILMENT OF ORDERS

You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.

DANGEROUS AND PROHIBITED GOODS

These goods are available for in-store collection only.