Brasscraft bc-b1-20dwf 3/8 in Comp X 3/8 in Comp Fitting

Product Description

The BRASSCRAFT bc-b1-20dwf is a 3/8 inch compression by 3/8 inch compression coupling fitting used to connect two sections of tubing in water supply applications. Compression fittings of this type create a leak-resistant mechanical seal without soldering, relying on a ferrule and nut assembly to grip the tubing securely. Plumbers and pipefitters install this style of fitting when a removable, serviceable connection is preferred over a permanent brazed or soldered joint.

This fitting is suited for residential and light commercial plumbing installations, including under-sink water supply lines, fixture connections, and shutoff valve hookups. The 3/8 inch compression ends are a standard size commonly found on supply lines running to faucets, icemakers, and similar fixtures. It is typically installed by licensed plumbers or experienced pipefitters working on potable water distribution systems.

Key Features

• 3/8 inch compression inlet and outlet for tool-free, solder-free connections
• Mechanical ferrule-and-nut design allows disassembly and reuse where permitted
• Standard compression sizing compatible with common residential supply tubing
• Compact coupling form factor suited for tight under-cabinet and in-wall installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial plumbing systems using 3/8 inch OD compression tubing connections.

Installation Notes

Shut off the water supply and relieve line pressure before beginning work. Ensure tubing ends are cut cleanly and deburred to achieve a proper ferrule seal. Hand-tighten the compression nuts first, then snug with a wrench — avoid overtightening, which can deform the ferrule and cause leaks. Installation should comply with applicable local plumbing codes and IPC requirements for potable water supply piping.

Technical Specifications

• Inlet Connection: 3/8 inch compression
• Outlet Connection: 3/8 inch compression
• Connection Type: Compression x Compression

Standard Information

• Brand: BRASSCRAFT
• Manufacturer Part Number: bc-b1-20dwf