Mueller Streamline K018000 Dwv Trap Adapter 1-1/4 in Hub X Slip Pvc

Product Description

The MUELLER STREAMLINE K018000 is a DWV trap adapter designed to connect P-traps and fixture drains to drain, waste, and vent piping systems. Built from PVC, this adapter features a hub end on one side and a slip end on the other, allowing it to receive a solvent-welded hub connection while accommodating a slip-joint trap arm. The 1-1/4 inch nominal size suits standard lavatory and small fixture drain configurations. Plumbers and drain-rough tradespeople install this fitting during new construction and remodel work where a fixture trap must transition cleanly into a DWV branch line.

This trap adapter is used in residential and light commercial plumbing applications wherever a 1-1/4 inch P-trap connects to a PVC DWV drain line. Typical installations include bathroom lavatory drains, utility sinks, and similar low-flow fixture drain points. The hub x slip end style allows the hub end to be solvent-welded into a DWV fitting or pipe while the slip end accepts the threaded or slip-joint trap arm without adhesive, making future service and trap removal straightforward.

Key Features

• 1-1/4 inch nominal size fits standard lavatory and small fixture drain traps
• Hub x slip end style supports solvent-weld installation on one end and slip-joint connection on the other
• PVC construction provides corrosion resistance and compatibility with standard DWV solvent cements
• Domestically produced fitting suitable for projects requiring domestic-origin materials
• Designed for drain, waste, and vent (DWV) service — not rated for pressure applications

Compatibility

Designed as an OEM-style replacement and standard fitting for residential and light commercial PVC DWV drain systems accepting 1-1/4 inch nominal hub and slip-joint trap connections.

Installation Notes

Installation is performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and verify the drain line is clear before beginning work. The hub end is joined using approved PVC solvent cement and primer per manufacturer and code requirements; the slip end does not require adhesive and should not be solvent-welded so the trap remains serviceable. This fitting is for DWV service only and must not be installed in pressurized water supply lines.

Technical Specifications

• Nominal Size: 1-1/4 inches
• End Style: Hub x Slip
• Material: PVC
• Service Type: DWV (Drain, Waste, Vent)
• Origin: Domestic

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: K018000