Legend Valve 104-K Wrot Copper Male Adapter 3/4 in Mnpt

Product Description

The LEGEND VALVE 104-K is a wrot copper male adapter designed to transition between a sweat (solder) copper connection and a male NPT threaded fitting. Manufactured from wrot copper, this adapter delivers reliable pressure performance in potable water, hydronic heating, and general plumbing systems. The 3/4 inch nominal size and MNPT threading make it a standard workhorse fitting for residential and light commercial installations. Licensed plumbers and pipefitters rely on this type of adapter wherever a copper supply line must terminate into a threaded port on a valve, fixture, or appliance.

This adapter is suited for residential and light commercial plumbing applications, including domestic water supply, radiant heating manifolds, and hydronic distribution systems. It is commonly installed where copper tubing transitions to a threaded connection at a shutoff valve, water heater, pressure reducing valve, or similar threaded component. The fitting accepts standard 3/4 inch copper tube on the sweat end and connects to a female NPT port on the receiving fitting.

Key Features

• Wrot copper construction for high-pressure and high-temperature service
• 3/4 inch nominal sweat end joins standard Type K, L, or M copper tubing
• MNPT threaded outlet connects directly to female NPT ports
• Suitable for potable water systems
• Compatible with standard lead-free solder per applicable plumbing codes

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/4 inch nominal copper sweat-to-male NPT transitions in residential and light commercial plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and depressurize the line before soldering. Clean and flux both the tube and fitting socket before applying lead-free solder. Allow the joint to cool fully before restoring pressure and checking for leaks.

Technical Specifications

• Material: Wrot Copper
• Nominal Size: 3/4 inch
• Connection Type: Sweat x MNPT

Standard Information

• Brand: LEGEND VALVE
• Manufacturer Part Number: 104-K