Watts LF709-QT-FDA-IOT 4 - Part of the LF709 Series mainline-adatile uniform network of apertures providing

uniform network of apertures providing significant tensile capacity

suitable for more demanding job sites

Captured springs for safe maintenance

Features Solder union inlet

Watts LF709-QT-FDA-IOT 4 - Part of the LF709 Series mainline-adatile uniform network of apertures providingThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. Ideal for protection in continuous pressure piping applications and cross connections identified as non health hazards. This assembly consists of a fused epoxy coated cast iron body, FDA epoxy coated