EasyPro Underliner Vent System - 4" End Outlet Fitting and 6" x 150' Roll Size:Underliner Vent System - End Outlet Fitting to 4" drain pipe 4oz 98948 742575989488 Dry Beneficial

4oz 98948 742575989488 Dry Beneficial Bacteria

Filter handle for easy back-washing to clean media

120° 6 Liters 15" x 12" x 16"

Part No: FPRC3020

Initial Treatment Maintenance Treatment 2 ounces per 1

EasyPro Underliner Vent System - 4" End Outlet Fitting and 6" x 150' Roll Size:Underliner Vent System - End Outlet Fitting to 4" drain pipe 4oz 98948 742575989488 Dry BeneficialEasyPro lives up to their name with this great and unique vent system made to vent air, methane or water out from under a pond liner to prevent the liner from bulging upward. Just install the liner vent while building the pond, prior to installing the liner and putting in the decorative rock. Anyone who has ever had a liner lifted will understand how valuable this could be.