Watts LF800M4-QT-FZ 1 1/2 - Part of the LF800M4QT Series Egress System Integrated Membrane Clamp & Gravel

Integrated Membrane Clamp & Gravel Guard: Secures the roof membrane for waterproof protection and prevents clogging from aggregate or debris

Relief Valve Disc Kit Type Complete Rubber Parts Kit Lead Free YES Product Group BACKFLOW KITS UPC - 098268074062

Specifications Kit Type Repair Kit Lead Free NO Product Group TEMPERING UPC - 098268783117

Integrated Modular Outlet & Strainer System: Modular design includes bottom outlets and grate saddles to manage flow and prevent clogging

making it ideal for compact roofs or cornice installations

Watts LF800M4-QT-FZ 1 1/2 - Part of the LF800M4QT Series Egress System Integrated Membrane Clamp & GravelThis 1 1 2 inch lead free anti siphon pressure vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a lead free cast copper silicon alloy body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O ring seal, a lightweight plastic disc float, tee handle shutoff, and test