A self-locking ductile iron dome and 6 inch no hub outlet allow for easy maintenance and installation
It features a flashing clamp with integral gravel guards to ensure reliable high volume drainage and an 8 inch no hub outlet for simple installation
Fabricated channel in Type 304 stainless steel (#11 gauge) with bead-blasted finish for durability and corrosion-resistance
non-health hazard applications in smaller supply lines
7 Body Material Iron Brand Watts Corrosion Resistant Coating No Disc Material Silicone EAN 098268278156 Environmental Product Declaration No Gauge Option No Gauge Inlet Connection Size 1/2 IN Inlet Connection Type Union Joint Inlet Thread Type NPT Lead Free NO Maximum Operating Temperature-Celsius 100
Watts 800M4FR-FZ 1 1/2 - Part of the 800M4FR Series ground-shipping A self-locking ductile iron domeThis 1 1 2 inch freeze resistant pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze 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, a built in relief valve to protect the internal components