Phat Pre-Filter 39 inch x 10 inch Reservoirs 3/4 in garden hose fit:

3/4 in garden hose fit: Threads inline on a standard hose

Air-powered foam: Clings to surfaces for longer chemical contact than spray

and expansion tank

One application every two weeks from clone to harvest

that's where they exchange nutrients

Phat Pre-Filter 39 inch x 10 inch Reservoirs 3/4 in garden hose fit: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 provided. If your pre filter is dirty