Mueller W40306 1/4" Tee

For veteran technicians and contractors, the Mueller W40306 1/4" Tee is a staple wrot copper fitting engineered for precision in HVACR systems and plumbing. Built to exceed rigorous field demands, this CxCxC copper tee features a 1/4 inch outer diameter (OD) and a 1/8 inch nominal size, providing a reliable 3-way junction for fluid and refrigerant transfer. Constructed by Mueller Streamline, this solder-joint copper fitting ensures a robust, leak-free connection when properly brazed or soldered into refrigeration lines or potable water systems. This fitting is rated up to 700 psi, making it suitable for high-pressure applications where durability and tight tolerances are non-negotiable. Whether you are performing a commercial refrigeration repair or a residential install, the W40306 provides the ASTM B16.22 compliant performance needed for a professional finish and long-term system integrity.

• Industrial Durability: Engineered from high-grade wrot copper to withstand high-pressure environments up to 700 psi.
• Standardized Compatibility: Fully compliant with ASME B16.22 and NSF 61G standards, ensuring 1/4" OD copper pipe compatibility.
• Precision Flow Control: The CxCxC (Cup x Cup x Cup) design allows for smooth fluid transitions and consistent flow across all three ports.
• Versatile Application: Ideal for refrigeration systems, potable water lines, and general HVAC line branching.

Common Questions & Answers

What is the difference between the 1/4" OD and 1/8" nominal size for this fitting?
In the HVACR trade, sizing is often referred to by the Actual Outside Diameter (1/4") for refrigeration work, while plumbing standards refer to the Nominal Size (1/8"). Both refer to the same physical dimensions of this Mueller W40306 fitting.

Can this tee be used for high-pressure R-410A refrigerant lines?
Yes, this wrot copper tee is pressure rated for 700 psi, which meets the requirements for most standard HVACR and high-pressure refrigerant applications.

Is this fitting suitable for lead-free potable water installations?
Absolutely. The W40306 is NSF 61G certified, confirming it meets all lead-free requirements for safe use in drinking water systems.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.