Watts 774DCDA-OSY-TS-GPM 12 - Part of the 774DCDA Series Z100F-6NH Includes an atmospheric port that

Includes an atmospheric port that provides visual indication of failure of the second check

Flashing clamp ensures secure membrane attachment

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The Swimming Pool Root Barrier flexible rolled product that is used to prevent tree root damage on your swimming pool

Watts 774DCDA-OSY-TS-GPM 12 - Part of the 774DCDA Series Z100F-6NH Includes an atmospheric port thatThis 12 inch double check detector backflow preventer assembly prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It is designed for installation on applications identified by local authorities as non health hazard, such as on fire protection systems. This assembly consists of a compact construction and short lay length, ideal for retrofit installations and can be installed in a