Plumb Shop MP2781PCLF Straight Stop Valve 1/2 Sweat X 3/8 Comp

Product Description

The PLUMB SHOP DIV BRASSCRAFT MP2781PCLF is a straight supply stop valve designed for residential and light commercial plumbing supply lines. It features a 1/4-turn ball-style operation, connecting a 1/2-inch copper sweat inlet to a 3/8-inch OD compression outlet. The chrome finish suits exposed under-sink installations where appearance matters. Built to lead-free standards, this valve meets current potable water compliance requirements. Licensed plumbers and experienced service technicians install this valve to shut off water supply to sinks, toilets, and similar fixtures without interrupting flow to the rest of the system.

This stop valve is suited for under-sink and vanity installations in residential bathrooms and kitchens, as well as light commercial settings where a copper sweat supply line feeds a fixture with a 3/8-inch OD compression connection. It is a direct-service component in cold and hot water supply lines feeding faucets, toilets, and similar point-of-use fixtures. The 1/4-turn operation allows fast shutoff without the gradual wear associated with multi-turn globe-style valves.

Key Features

• 1/4-turn operation for fast, reliable shutoff with minimal handle rotation
• 1/2-inch copper sweat inlet connects directly to soldered copper supply pipe
• 3/8-inch OD compression outlet for standard flexible supply line connections
• Chrome finish for a clean appearance in exposed under-sink applications
• Lead-free construction meets NSF and applicable potable water regulations
• Straight configuration for in-line installations where offset is not required

Compatibility

Designed as an OEM-style replacement or new-installation stop valve for residential and light commercial plumbing systems using 1/2-inch copper sweat supply pipe and 3/8-inch OD compression fixture connections.

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 line pressure before beginning work. The sweat inlet requires proper soldering technique and flux — allow the fitting to cool completely before attaching the compression outlet or any flexible supply line. Do not overtighten the compression nut, as this can deform the ferrule and cause leaks.