1-1/2 inch x 1-1/4 inch ABS DWV Trap Reducing Adapter Plastic x Slip Joint

1-1/2 inch x 1-1/4 inch ABS DWV Trap Reducing Adapter – For Direct Pipe Size Transitions

The 1-1/2 inch x 1-1/4 inch ABS DWV Trap Reducing Adapter is engineered for joining dissimilar drain pipe sizes in drainage, waste, and vent systems. This fitting is commonly used to reduce a 1-1/2 inch trap arm or horizontal branch to a 1-1/4 inch outlet, ensuring proper slope and hydraulic performance in bathroom fixture connections.

Performance and Material Benefits

• ✅ Durable ABS Construction Manufactured from impact-resistant ABS thermoplastic for consistent performance in gravity-flow DWV systems.
• ✅ Slip Joint Design Provides ease of installation with compression nut and washer, facilitating secure connections and simplifying service access.
• ✅ Corrosion-Resistant Will not rust or degrade in contact with typical household waste streams.
• ✅ Meets UPC and ASTM D2661 Standards Suitable for use in code-compliant plumbing assemblies.
• ✅ Compact Profile Designed for space-constrained installations beneath lavatory sinks and similar fixtures.

Typical Installation Use

This adapter is most often installed under bathroom sinks where a 1-1/2 inch trap is being connected to a 1-1/4 inch tailpiece or branch line. Common in remodels and retrofits, especially where fixture outlets do not match existing pipe sizes.

Specifications

• Material: Acrylonitrile Butadiene Styrene (ABS)
• Size: 1-1/2 inch x 1-1/4 inch
• Connection Type: Slip x Slip or Slip x Compression, depending on model configuration
• Temperature Rating: For use in non-pressurized systems with waste temperatures up to 140°F (60°C)
• Certifications: UPC listed; ASTM D2661 compliant

Additional Information

ABS DWV fittings are preferred in many applications for their ease of handling, solvent-weld capabilities, and performance consistency. Unlike metal counterparts, ABS resists scale buildup and is not subject to corrosion in chemical-laden environments.

The 1-1/2 inch x 1-1/4 inch ABS DWV Trap Reducing Adapter is a standard component for adapting fixture connections in residential and light commercial plumbing. Its compatibility with solvent-weld or mechanical joint connections makes it a versatile solution for drain assemblies requiring size reduction within a confined layout.