Mastercool 90333-UV 90° Automatic Shut-Off Valve 1/4" FFL x 13mm

The Mastercool 90333-UV is a 90-degree automatic shut-off valve designed for HVAC and refrigeration service applications. This essential safety component features 1/4" female flare (FFL) x 13mm connections, providing secure attachment to standard charging hoses while preventing unnecessary refrigerant loss during service procedures.

Key Features:

• 90-degree angled design for improved access in tight spaces
• Automatic shut-off prevents refrigerant venting when disconnecting hoses
• 1/4" female flare x 13mm connection compatibility
• Simple screw-on installation to hose ends
• Meets SAE, EPA, and UL requirements for refrigerant containment
• EPA-compliant when installed within 12 inches of hose ends

This shut-off valve is part of Mastercool's complete line of refrigerant containment solutions, designed to comply with EPA regulations requiring shut-off valves within 12 inches of charging hose ends. Using this valve significantly improves safety during HVAC service by containing refrigerant instead of allowing it to blow out during connection and disconnection procedures.