Phat Filter Chemicals Keep your shelf supply in

Keep your shelf supply in a dark

Magnesium sulfate

It is a replacement electrode for the GroChek series "-5" models: HI9813-5 & HI9813-5N

A one-dimensional lighting system is easily and economically converted into a complete (metal halide/HPS) growing system

Extra-big chunks of perlite provide the best drainage for superior root aeration

Phat Filter Chemicals Keep your shelf supply inPhat Filters are packed full with the very best carbon on the market and we have the independent lab test numbers to prove it. How do we know? Simple math. Carbon Quantity x Carbon Quality = Filter Capacity QUANTITY: When we say Phat Filter carbon beds are 2" thick, they are in fact, 2" thick. The same is true when it comes to Phat Filter bed length size; the size we claim is in fact the actual size, not a rounded up dimension to make it seem bigger.