FJC field service couplers connect to hoses to allow easy access and a secure lock to A/C service ports on automotive R-134a systems. Manufactured from superior quality materials for long life and durability.

• 90 Degree replacement coupler for converting R-12 manifold gauge sets to R-134a
• High side, Red
• 1/4" Hose Connection
• Compact design fits into tight spaces
• Provides a stable grip on the fitting
• Replacement O-ring is Part # 4211