Mastercool 82894 R134a Manual Coupler Kit

Forged Brass. Precision Engineered. Built to Protect Every Connection. Mastercool’s R134a Manual Coupler Kit starts with a single forged brass body — no welded seam, no joint, no weak point. Every dimension, from the seal gland to the hex, is engineered to spec rather than left to chance, giving technicians a coupler that adjusts easily to varying service port dimensions, seals right, and protects the valve core on every connection.

• One-Piece Forged Brass Body: No Welded Seam Like a Two-Piece Machined Body — Just Solid, Forged Brass Holding Its Shape and Seal Integrity Through Years of Daily Use
• No Loss Disconnect: Removes the Coupler At Any Knob Position Without Losing Refrigerant, Thanks to a Patented Internal Sealing Mechanism
• Meets SAE, UL and EPA Requirements: for Containment of Refrigerant
• Patented Spring-Loaded Depressor: Manufactured to Reach the Maximum Valve Core Depth Specified By SAE Guidelines, Ensuring Reliable, Consistent Engagement Across Standard Service Ports
• Precision-Machined 18 mm Hex: Machined to a True 18 mm After Forging, So a Standard Wrench Seats Perfectly Every Time — No Rounded Corners, No Slipping
• Nickel-Plated Brass: Protects the Body From Corrosion and Discoloration Through Years of Shop Use
• All-Metal Construction: No Plastic Components, Built to Hold Up to Drops, Impacts and Daily Wear