Watts 0888561 Check Valve 1/2 to 3/4 Inches

Product Description

The WATTS 0888561 is a first-check valve designed for inline backflow prevention in residential and light commercial plumbing systems. It controls flow direction, allowing water to pass forward while blocking reverse flow that could contaminate the supply line. Built for 1/2 inch to 3/4 inch pipe connections, this check valve is a compact, reliable solution for potable water and fluid control applications. Licensed plumbers and pipefitters install this type of valve during new construction, system retrofits, and code-compliance upgrades. At 0.2 pounds, the lightweight construction makes handling and positioning straightforward in tight installations.

This check valve suits residential water supply lines, irrigation system inlets, hydronic heating circuits, and similar low-pressure plumbing applications where backflow prevention is required. The 1/2 inch to 3/4 inch size range covers the most common small-diameter supply and branch line configurations found in residential construction and light commercial plumbing. It is appropriate for installations where a dedicated first-check device is specified by code or system design.

Key Features

• Backflow prevention through inline check valve design
• Fits 1/2 inch to 3/4 inch pipe connections
• Lightweight at 0.2 pounds for easy handling in confined spaces
• Suitable for potable water and general fluid control applications
• Compact form factor for use in tight plumbing rough-ins

Compatibility

Designed as an OEM-style replacement or new-installation check valve for 1/2 inch to 3/4 inch plumbing systems requiring inline backflow prevention.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before removing any existing valve or fitting. Verify flow direction markings on the valve body before securing connections. Do not overtighten threaded fittings, as this can damage valve seats and compromise the seal.