Anderson Metals 754039-04 Brass Flared Tube Plug 1/4 in

Product Description

The ANDERSON METALS 754039-04 is a lead-free brass flared tube plug designed to seal the open end of a 1/4-inch OD flare fitting. It uses a 45-degree flare end connection to create a pressure-tight seal without additional sealant. Rated for a maximum working pressure of 1,400 psi, this plug is built for demanding service conditions. Its lead-free brass construction meets current potable-water material requirements, making it suitable for both water and refrigerant line applications. Plumbers, HVAC technicians, and refrigeration service professionals install this fitting when capping an unused or temporarily isolated flare port.

This plug is used in residential and light commercial plumbing, HVAC, and refrigeration systems wherever a 1/4-inch OD flare connection needs to be closed off. Common applications include capping service ports, isolating unused branch connections, and blanking off flare tees or manifolds during system service or reconfiguration. Its compact profile allows installation in tight spaces typical of equipment rooms and mechanical chases.

Key Features

• Lead-free brass construction meets potable-water material compliance requirements
• 45-degree flare end connection for a reliable, leak-resistant seal
• Rated to 1,400 psi maximum working pressure, static and dynamic
• Fits 1/4-inch OD flare fittings — a standard size across HVAC and plumbing applications
• Compact size suitable for installation in confined spaces

Compatibility

Designed as an OEM-style replacement or service fitting for any 1/4-inch OD 45-degree flare port in residential or light commercial HVAC, refrigeration, or plumbing systems.

Installation Notes

This fitting is installed by licensed plumbers or HVAC-R technicians. Before installation, isolate and depressurize the line being capped and recover any refrigerant in accordance with EPA Section 608 requirements where applicable. Thread the plug onto the flare fitting by hand first to avoid cross-threading, then tighten with an appropriately sized wrench. Do not overtighten, as excessive force can distort the flare seat and cause leaks.