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A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate pH. Premium probe technol...

This replacement probe for the GroStar GS1 pH Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...

A lab-grade tool designed specifically for horticulture, this easy-to-use pen allows you to quickly measure and calibrate water EC, PPM (500), PPM ...

This replacement probe for the GroStar GS3 EC Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologi...

This replacement probe for the GroStar GS4 5-in-1 Combo Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe ...

Perimeter Trim (in.): 11.00 x 21.22Cell Footprint: 10 x 20Drain Hole: 0.31Depth (in.): 1.75  

Use this 2" heavy-duty plastic dome with 10" x 20" trays to help retain moisture and heat to improve seedling germination. Includes 3 vents to help...

BMC controls pests and disease by killing developing mosquitoes and fungus gnats before they become breeding, biting adults. This liquid disperses ...

An “ecosystem in a bottle,” Photo Plus provides enhancements essential to plant growth, stability, and vigor by revving up biological function at t...

BMC controls pests and disease by killing developing mosquitoes and fungus gnats before they become breeding, biting adults. This liquid disperses ...

BMC controls pests and disease by killing developing mosquitoes and fungus gnats before they become breeding, biting adults. This liquid disperses ...

This air pump with 1 outlet is super silent with a multi-level muffler. It features special artificial rubber to keep a steady air flow output and ...

This commercial air pump with 6 outlets is ideal for running several Waterfarms or multiple air stones at once. The pump features an electrical mag...

Farmhand grow has been redesigned from the ground up to deliver 30% greater yields for leafy greens while promoting even growth throughout vegetat...

Farmhand boost was designed to encourage explosive vegetative growth. This high-nitrogen supplement is formulated for use with all farmhand grow an...

Lower pH with this highly concentrated pH Down for rapid pH adjustment. An acidic buffer in the liquid lowers the pH of water and nutrient solution...

Raise pH with this highly concentrated pH Up for rapid pH adjustment. An alkaline buffer in the liquid raises the pH of water and nutrient solution...

What's Included: farmhand® form 14-0-0, (1) 5 lb. farmhand grow 12-2-39, (1) 5 lb. farmhand boost 14-0-39, (1) 5lb. Peat + Coco Grow Plugs, (1...

What's Included: farmhand form 14-0-0, (1) 5lb. bag farmhand grow 12-2-39 ,(1) 5lb. bag farmhand boost 14-0-39, (1) 5lb. bag Complete Nutritiona...

This bottom draw pump adapter allows you to convert your premium submersible pump into a practical bottom draw pump. No need to purchase additional...