Features:
Brass construction, quick connection, good tensile strength, corrosion resistance and AC low-loss fitting.
Come with full swivel tip.
With 45° angle on the service port site for easier access.
Converts the 5/16 inch SAE charging-vacuum ports to accept 1/4 inch SAE gauge-hose set.
Great fits for R410A mini split system air conditioners, HVAC and refrigeration service.

Specifications:
Material: Brass
Connectors: 5/16 inch female to 1/4 inch male SAE w/ valve core depressor
Thread diameter: about 0.47 inch/ 12 mm
Thread size: about 11 mm
Total size: diameter: about 0.63 inch/ 1.6 cm, 2.09 inch/ 5.3 cm

Package include:
2*Adapter

Notes:
1. R410A ductless mini split systems are usually equipped with a different charging port size to avoid charging of wrong refrigerant into the system (i.e. R22)
2. This new port size is 5/16 inch SAE and some gauge sets carry 1/4 inch SAE connectors.
3. Port adapter converts the 5/16 inch SAE ports to use with 1/4 inch SAE gauge sets.