Mastercool 90262 Straight & Manual Shut-Off Valve Set. Ball valve design with flexible hose controls refrigerant with a quarter turn of the valve handle. Meets SAE, EPA and UL requirements for containment of refrigerant. Can be operated with one hand. Screws onto charging hose end. Straight & Manual shut-off valve set includes: Blue 1/4" x 1/4", Yellow 1/4" x 1/4", Red 1/4" x 1/4".