Phat Pre-Filter 12x6 Garden Accessories Grow A & B contain

Grow A & B contain potassium

The General Hydroponics pH Test Indicator works across a wide pH spectrum (pH 4

Digital display shows current humidity level

because they are all chitin based in structure

tried and true

Phat Pre-Filter 12x6 Garden Accessories Grow A & B containPhat Filter replacement pre filter replaces your used pre filter to give your Phat filter longer life by filtering out larger impurities before they have a chance to enter into the actual filter. Each pre filter is stamped with the Phat Filter logo and fits snugly over your Phat filter. The pre filter is available in all Phat Filter sizes and can be easily slid over the filter and secured with the plastic straps provided. If your pre filter is dirty