Brasscraft bc-b1-20dlf Braided Polymer Closet Supply Line

Product Description

The BRASSCRAFT bc-b1-20dlf is a 20-inch braided polymer closet supply line designed to connect a toilet tank to a standard angle stop or straight stop valve. Built with a 3/8 inch compression inlet and a 7/8 inch closet shank outlet, this supply line handles the final water connection in a toilet rough-in. The braided polymer construction provides resistance to kinking and everyday mechanical stress. Plumbers and experienced DIYers install this line during toilet replacement, valve service, or new construction rough-in work.

This supply line is suited for residential toilet installations where a 3/8 inch compression fitting connects to the supply stop and a 7/8 inch ballcock shank fitting connects to the toilet tank. The 20-inch length accommodates standard rough-in distances from floor-mounted angle stops to the toilet tank inlet. It is appropriate for use in residential bathrooms and light commercial restroom applications where a braided polymer supply connector meets local plumbing code requirements.

Key Features

• 20-inch overall length fits standard residential toilet rough-in dimensions
• 3/8 inch compression inlet connects to standard angle stop or straight stop valves
• 7/8 inch closet shank outlet fits standard toilet ballcock and fill valve inlets
• Braided polymer construction resists kinking and abrasion during installation and service life
• Pre-formed fittings on both ends reduce installation time

Compatibility

Designed as an OEM-style replacement closet supply line for residential toilet installations using a 3/8 inch compression stop valve and a 7/8 inch closet shank fill valve or ballcock connection.

Installation Notes

Installation is performed by a licensed plumber or qualified tradesperson in accordance with local IPC or applicable plumbing code requirements. Shut off the supply stop valve and flush the toilet to relieve pressure and drain the tank before disconnecting the old supply line. Hand-tighten fittings first, then snug with a wrench — avoid over-tightening polymer-bodied fittings, as excess torque can crack the fitting seat. Inspect both end connections for leaks after restoring water pressure.

Technical Specifications

• Length: 20 inches
• Inlet Connection: 3/8 inch compression
• Outlet Connection: 7/8 inch closet shank
• Hose Material: Braided polymer

Standard Information

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