Sioux Chief 1-1/2" Flanged Poly Washer

Sioux Chief 1-1/2" Flanged Poly Washer

The Sioux Chief 1-1/2" Flanged Poly Washer is a rough-in plumbing component used in slip-joint tubular drain assemblies. Sized for 1-1/2" tubular connections, this poly washer has a flanged profile that seats against the shoulder of a slip-nut fitting to help hold its position and maintain a seal at the joint. It is intended for use on P-traps, tailpieces, and other tubular waste fittings that rely on a slip-nut and washer connection rather than a solvent-welded or threaded joint. As a Sioux Chief part, it is supplied for use by plumbing contractors and service technicians completing rough-in installation, remodel work, or repair calls on tubular drain lines behind the wall or under the fixture. Because it is a small, low-cost hardware item, it is commonly stocked in bulk by plumbers and wholesalers so a matching washer is on hand whenever a tubular joint needs to be broken down and reassembled.

Key Features

• Trade Size: Sized for 1-1/2" tubular drain and trap fittings, matching the common slip-joint connection size used on residential and light commercial P-traps and tailpieces.
• Flanged Design: The flanged edge registers against the fitting shoulder inside the slip nut, helping keep the washer centered and properly seated during assembly.
• Poly Construction: Molded from poly material sized to function as a compression washer within a slip-nut tubular joint.
• Slip-Joint Application: Built to pair with slip nuts on tubular waste fittings rather than solvent-welded or threaded connections.
• Field Replacement Use: Suitable as a replacement washer when disassembling and reassembling a tubular drain connection during service or repair work.
• Fitting Compatibility: Matches the 1-1/2" tubular size range commonly found on kitchen, bath, and laundry drain assemblies that use slip-nut hardware.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• P-Trap Slip-Joint Assemblies
• Tailpiece and Waste Arm Connections
• Tubular Drain Rough-In Installation
• Plumbing Service and Repair Work
• Residential and Commercial Drain Line Maintenance

Why Sioux Chief?

Sioux Chief supplies rough-in plumbing hardware used by plumbers and contractors across residential and commercial jobs. This 1-1/2" flanged poly washer is a straightforward, functional part for tubular drain assemblies, sized to fit the slip-joint connections found on common P-trap and tailpiece hardware. Keeping a compatible washer on hand helps a rough-in job or service call move forward without waiting on a specialty part, and it reflects Sioux Chief's focus on practical hardware for the trades. For plumbers who keep a stock of tubular drain hardware on the truck or in the shop, a correctly sized Sioux Chief washer helps keep a rough-in or service call on schedule.