Phat Pre-Filter 20x4 Harvest & Storage This variety of microbes is

This variety of microbes is designed to promote root growth & nutrient availability during the grow stage

Available in 3/4" and 1"

which helps increase yields

basements etc

the only 100% organic 1-part base nutrient specifically formulated with a diverse spectrum of primary

Phat Pre-Filter 20x4 Harvest & Storage This variety of microbes isPhat 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