Brass R410a Vacuum Pump Adapter 5/16 SAE to 1/4 SAE Coupler 2pk
Keep your HVAC and air conditioning service work running smoothly with this durable brass R410a vacuum pump adapter. Designed to convert a 5/16" SAE female quick coupler to a 1/4" SAE fitting, this 2-piece set is an essential addition to any HVAC technician's or DIY enthusiast's toolkit. Constructed from high-quality aluminium-copper (brass) alloy, it delivers excellent corrosion resistance and a leak-free seal under the pressures typical of refrigerant handling and vacuum pump operations.
Whether you're a certified HVAC technician, a home improvement enthusiast, or someone maintaining your own mini-split or central air system, this adapter bridges the gap between your vacuum pump's 1/4" SAE port and the standard 5/16" SAE quick-connect fittings found on R410a manifold sets. It's a small part that makes a big difference in getting the job done right.
For guidance on safe refrigerant handling and environmental best practices, visit the U.S. EPA Section 608 Refrigerant Management Guidelines.
A: This adapter converts a 5/16" SAE female quick coupler to a 1/4" SAE male fitting. It allows you to connect a standard vacuum pump (which typically uses a 1/4" SAE port) to R410a manifold gauge sets or service hoses that feature 5/16" SAE quick-connect fittings — making it an essential tool for air conditioning evacuation and charging procedures.
A: Yes. While it is designed with R410a service work in mind, the 5/16" SAE to 1/4" SAE fitting size is also compatible with other common refrigerant systems that use the same SAE port standards. Always verify your equipment's fitting requirements before use.
A: The adapter is machined from an aluminium-copper (brass) alloy. Brass is widely preferred for refrigerant fittings because it offers excellent resistance to corrosion, handles the pressures involved in HVAC service work, and provides a reliable, leak-free seal when properly torqued — ensuring safe and efficient operation.
A: The package includes 2 brass adapters, so you have a spare on hand or can set up two service lines simultaneously.
Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
Made with care and unconditionally loved by our customers, this signature bestseller exceeds all expectations.
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