Plumb Shop Div Brasscraft 321-505 Flexible Drain Coupling

Product Description

The PLUMB SHOP DIV BRASSCRAFT 321-505 is a white plastic flexible drain coupling designed for slip-joint connections in lavatory and kitchen drain applications. It accommodates both 1-1/4 inch and 1-1/2 inch outer diameter tubing and extends 6 inches to bridge misaligned or offset drain connections. The flexible construction allows minor angular adjustment during installation, reducing the need to recut or refit rigid drain sections. Nuts and washers are included, making this a complete slip-joint assembly. Licensed plumbers and experienced DIYers install this coupling as part of P-trap and drain tailpiece assemblies under sinks.

This coupling fits standard lavatory and kitchen sink drain configurations where a flexible connection is needed between the drain tailpiece and the trap arm or downstream drain piping. Its dual-size compatibility with 1-1/4 inch and 1-1/2 inch OD tubing makes it useful across a range of residential sink setups. It is suited for use in bathrooms and kitchens where drain geometry requires a short, flexible transition rather than a rigid extension tube.

Key Features

• Accepts 1-1/4 inch or 1-1/2 inch OD tube slip-joint connections
• 6 inch length bridges offset or misaligned drain connections
• Flexible plastic construction allows minor angular adjustment
• White finish consistent with standard drain hardware
• Includes nuts and washers for a complete slip-joint assembly

Compatibility

Designed as an OEM-style replacement or new-installation slip-joint coupling for residential lavatory and kitchen sink drain assemblies using 1-1/4 inch or 1-1/2 inch OD drain tubing.

Installation Notes

Installation is typically performed by a licensed plumber or qualified DIYer. Shut off the water supply and ensure the drain system is empty before disassembling existing trap components. Hand-tighten slip-joint nuts to seat the washers, then snug lightly with channel-lock pliers — do not overtighten plastic fittings. Verify alignment and check for leaks by running water through the drain after assembly.