Mueller Streamline w01173 Male Adapter C X Mpt 1-1/4 Inches X 3/4 Inches Wrot Copper Fitting

Product Description

The Mueller Streamline W01173 is a wrot copper male adapter fitting with a cup by male pipe tapered thread (C x MPT) connection. It measures 1-1/4 inches on the cup end and 3/4 inches on the male NPT thread end. This fitting is used to transition from a copper solder-joint system to a threaded pipe connection. Plumbers and pipefitters rely on this type of adapter when joining copper tubing to threaded valves, fixtures, water heaters, pressure gauges, or other threaded components in a potable water supply system. The cup end accepts standard copper tubing and is soldered in place using a clean, flux-and-solder joint. The male NPT threaded end threads directly into a female threaded fitting or valve body. Wrot copper is a wrought material known for its tight grain structure, consistent wall thickness, and excellent pressure-handling capability. It is the preferred material for systems that must meet strict code and sanitary requirements. This fitting is built to meet NSF 61G standards, which certifies it safe for use in above-ground potable water supply systems carrying drinking water. It also conforms to ASME standards B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1, covering dimensions, materials, and performance for copper and bronze pressure fittings. Mueller Streamline has been a trusted name in copper fittings for over 80 years, with a product line recognized for precision manufacturing and broad industry acceptance. This adapter is a reliable choice for residential and commercial plumbing installations, retrofit work, and new construction. It weighs 0.21 pounds and is stocked for fast use in the field.

• Cup x MPT connection transitions copper solder-joint systems to male NPT threaded pipe fittings
• Wrot copper construction meets NSF 61G for safe use in above-ground potable drinking water supply systems
• Compliant with ASME B16.15, B16.18, B16.22, B16.24, B16.50, and B1.20.1 standards for copper pressure fittings

Product Highlights

The Mueller Streamline W01173 male adapter delivers a code-compliant, pressure-rated transition from copper tubing to threaded pipe connections. It is built from wrot copper and certified for potable water service.

Product Information

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: W01173

Technical Specifications

• Material: Wrot Copper
• Weight: 0.21 pounds
• End Type: C - Cup (Female Solder)
• End Size: 1-1/4 inches
• Second End Type: MPT - Male Pipe Tapered Thread (NPT)
• Second End Size: 3/4 inches
• Standards: NSF 61G, ASME B16.15, ASME B16.18, ASME B16.22, ASME B16.24, ASME B16.50, ASME B1.20.1