Tapco Nb 1-003 Roman Tub Cartridge Cold Side

Product Description

The TAPCO NB 1-003 is a cold-side replacement cartridge for Newport Brass Roman tub faucet valves. It restores proper flow control and shutoff function to the cold water handle of Roman tub trim sets. This cartridge is a direct OEM-style replacement designed for plumbing service professionals who need a reliable, specification-matched component to complete a valve repair without replacing the entire trim assembly. Correct cartridge identification is essential before ordering — confirm the cold-side designation matches the existing valve body.

This cartridge is intended for Roman tub faucet applications in residential settings. Roman tub faucets are deck-mounted or deck-trim configurations commonly installed on freestanding soaking tubs and platform-style tub surrounds. The NB 1-003 addresses the cold water supply side of the valve assembly, making it the appropriate part when the cold handle is the source of dripping, rough operation, or loss of shutoff function.

Key Features

• Cold-side cartridge replaces a worn or failing valve stem in Newport Brass Roman tub faucets
• OEM-style fitment for specification-matched performance
• Restores smooth handle operation and reliable shutoff
• Targeted cold-side designation prevents misapplication with hot-side cartridges

Compatibility

Designed as an OEM-style cold-side replacement cartridge for Newport Brass Roman tub faucet valve assemblies. Confirm valve model and cold-side designation before installation.

Installation Notes

Installation should be performed by a licensed plumber. Shut off the water supply to the tub valve and relieve line pressure before disassembling the faucet body. Refer to the fixture manufacturer documentation to confirm correct cartridge orientation during reinstallation. Follow applicable local plumbing codes and IPC guidelines for valve service on fixture supply lines.

Technical Specifications

• Application: Cold Side Roman Tub Faucet Cartridge
• Faucet Type: Roman Tub
• Side: Cold

Standard Information

• Brand: TAPCO
• Manufacturer Part Number: NB 1-003