Zurn Pex qv3750a Globe Shut-off Valve 1/2 in Cts

Product Description

The ZURN PEX qv3750a is a 1/2-inch in-line globe shut-off valve designed for precise water flow control and reliable shut-off in plumbing systems. Built with a steel body and CTS x CTS (Copper Tube Size) end connections, this valve integrates cleanly into copper tubing runs without adapters. Its globe-style design provides positive shut-off with a straightforward quarter-turn or multi-turn mechanism, making it a dependable choice for isolating supply lines during service or installation. Licensed plumbers and experienced DIYers install this valve in both residential and light commercial applications where a compact, inline shut-off is required.

The qv3750a is suited for residential and light commercial cold or potable water supply systems. Its CTS x CTS end style makes it compatible with standard copper tube connections commonly found in domestic water distribution, fixture supply lines, and branch isolation applications. The compact form factor fits in tight mechanical spaces such as under-sink cabinet runs and closet stub-outs where clearance is limited.

Key Features

• Steel body construction for durability in pressurized water service
• CTS x CTS end connections for direct integration with copper tubing
• 1/2-inch nominal size fits standard residential and light commercial supply lines
• Globe shut-off design provides controlled, positive flow isolation
• Compact inline profile allows installation in confined spaces

Compatibility

Designed as an OEM-style replacement or new-installation globe shut-off valve for 1/2-inch copper tube size plumbing systems in residential and light commercial water distribution applications.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the main water supply and relieve system pressure before removing any existing valve or fitting. Ensure copper tube ends are cut square, deburred, and cleaned before making CTS connections to maintain a leak-free joint. Verify flow direction markings on the valve body align with the intended system flow direction before finalizing the installation.