Mastercool 90264 Yellow 1/4" x 1/4" Manual Refrigerant Shut-Off Valve

The Mastercool 90264 is a straight manual shut-off valve designed for safe refrigerant containment during HVAC/R service operations. Featuring highly visible yellow construction and 1/4" SAE male flare connections on both ends, this valve provides precise control of refrigerant flow with a simple quarter-turn ball valve design.

Key Features:

• Ball valve design with flexible hose allows one-handed operation
• Quarter-turn handle provides quick, positive shut-off
• Meets EPA requirements for shut-off valves within 12 inches of charging hose ends
• Complies with SAE, EPA, and UL standards for refrigerant containment
• 1/4" SAE male flare fittings on both ends
• Screws directly onto standard charging hose ends
• Yellow color-coded for easy identification

This shut-off valve is an essential safety component for preventing unnecessary refrigerant venting during service procedures. By providing positive shut-off control, it eliminates the risk of refrigerant blow-out when connecting or disconnecting hoses, making HVAC/R service work safer and more environmentally responsible.