Delta Faucet R3500-WL Rough-in Valve 1/2 in Npt Brass

Product Description

The DELTA FAUCET R3500-WL is a rough-in valve designed for in-wall shower and tub-shower plumbing installations. Featuring a 1/2 inch NPT inlet connection and a brass body construction, this valve provides the internal plumbing infrastructure required before finish trim components are installed. Licensed plumbers install rough-in valves during the rough plumbing phase, prior to wall finishing, to establish water supply control points for shower systems. The brass body offers durability and corrosion resistance suited to potable water service environments.

This rough-in valve is intended for residential shower and tub-shower applications where a concealed in-wall valve body is required. It is installed during the rough-in stage of new construction or remodel projects, housed behind the finished wall surface. The 1/2 inch NPT inlet sizing is standard for residential water supply lines, making it compatible with typical residential plumbing configurations. Finish trim kits are purchased separately and installed over the valve body once wall finishing is complete.

Key Features

• Brass body construction for corrosion resistance in potable water applications
• 1/2 inch NPT inlet connection matches standard residential supply line sizing
• Designed for concealed in-wall installation during rough plumbing phase
• Accepts separately sold finish trim components for design flexibility

Compatibility

Designed as an OEM-style rough-in valve for use with compatible DELTA FAUCET trim kits and shower system components requiring the R3500 valve platform.

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 depressurize the supply lines before beginning work. The valve must be secured and properly positioned within the wall cavity at the correct depth to allow for the finish trim plate to seat flush against the finished wall surface. Do not apply thread sealant or pipe tape to NPT connections until the valve orientation and depth are confirmed.

Technical Specifications

• Inlet Connection: 1/2 inch NPT
• Body Material: Brass

Standard Information

• Brand: DELTA FAUCET
• Manufacturer Part Number: R3500-WL