Watts 757-NRS-GXG 8 - Part of the 757 Series Z100F-8NH ZB400K-4IC

ZB400K-4IC

This fabric resists ultraviolet deterioration

Secured stainless-steel cover for enhanced corrosion resistance

The streamlined design of the Via drain grate protects the drainage system by blocking leaves and debris while water drains away

Built for heavy-duty applications

Watts 757-NRS-GXG 8 - Part of the 757 Series Z100F-8NH ZB400K-4ICThis 8 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other contaminants found at the service line