Phat Filters Pre-Filter, 12" x 4" Pre-Filter:Phat Filters Pre-Filter, 24" x 8" Apply when you first see

Apply when you first see signs of flower development

user-friendly CO2 monitor

Mix Nutrients + Aerate With Just One Pump

*GXM-150-HR

enriches and adds natural occuring micro-organisms to the soil

Phat Filters Pre-Filter, 12" x 4" Pre-Filter:Phat Filters Pre-Filter, 24" x 8" Apply when you first seeGet The Most Out Of Your Phat Filter! Phat 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