Water & Aeration

"Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Items ordered direct from vendor are eligible for Return to Stock claims."

"Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Items ordered direct from vendor are eligible for Return to Stock claims."

"Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Items ordered direct from vendor are eligible for Return to Stock claims."

"Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Items ordered direct from vendor are eligible for Return to Stock claims."

"Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Items ordered direct from vendor are eligible for Return to Stock claims."

All-purpose sprayer ideal for herbicides, pesticides, liquid fertilizers and many home applications! Unit is powered by a rechargeable battery. No manual pumping required. Easily move the sprayer around by using the attached pull cart or simply take the sprayer off its carriage and wear like a backpack by using the included padded straps. Ideal for large jobs. Includes four interchangeable sprayer nozzles for different applications. Trigger with a lock-on option can be engaged for a continuous spraying. This sprayer has an integrated filter included and a 4 ft hose. Replacement parts available below and online.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium hydroxide. They are safer to use as well as compared to mineral based adjusters. This is due to having a zero rating score for all safety categories on the HMIS scale as well as being non-corrosive and non-caustic. This means there are no HazMat fees to ship these products like other pH adjusters. Use Pro pH UP or Pro pH DOWN to effectively adjust the pH of nutrient solutions or irrigation water. GH Pro pH adjusters are highly concentrated and available in commercial sizes.

General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial.

This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.

This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.

This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.

The acid formulation uses phosphoric acid to lower the pH to the proper level.

The acid formulation uses phosphoric acid to lower the pH to the proper level.

The acid formulation uses phosphoric acid to lower the pH to the proper level.

General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5ml of solution.

Use the John Guest 1/4 in Quick Connect (QC) 2-Way Splitter for multiple reservoirs when using the Stealth RO™ system or the Small Boy™ system as well as any other system that takes 1/4 in tubing.

Use the John Guest 1/4 in Quick Connect (QC) Ball Valve Inline Shut-Off to customize your indoor hydroponic garden water purification system.

Use the John Guest 1/4 in Quick Connect (QC) x 1/4 in Quick Connect (QC) Union to customize your indoor hydroponic garden water purification system.

Use the John Guest 1/4 in Quick Connect (QC) Tee to customize your indoor hydroponic garden water purification system.

Use the John Guest 3/8 in Quick Connect (QC) 2-Way Splitter for multiple reservoirs when using the TallBoy™ system as well as any other system that takes 3/8 in tubing.