Features: Designed for traditional 1/4" SAE refrigerant charging hosesHVAC, HVAC/r, A/C provider Tech hand toolsApproved for R410A refrigerantBrass valves are coloration coded on knobs 1-Red, 1-Blue 1-YellowSpecification:1-Red: 1/4" Male SAE on one finish and 5/16" Female SAE with valve core depressor on other end1-Blue: 1/4" Male SAE on one finish and 5/16" Female SAE with valve core depressor on varied end1-Yellow: 1/4" Male SAE on one end and 1/4" Female SAE with valve core depressor on diversified endPackage Content: 3x instantly ball valves