The Mastercool 66434-R High-Side Standard R134a Economy Automotive Coupler.

A high-quality coupler designed for use with R134a refrigerants in automotive applications. Its durable construction and efficient design ensure reliable and effective performance, making it an essential tool for any automotive professional.

Expertly designed for tight spaces, the Mastercool High-Side Standard R134a Economy Automotive Coupler easily attaches to your existing R12 hoses and snaps onto A/C service ports, making automotive maintenance a breeze.