Mastercool 82375 Standard Oil and Dye Injector for R134a A/C Systems – 2 oz Heavy-Duty Canister – 1/2” Acme-M x 1/2” Acme-F Fittings – Needle Valve Control

Mastercool 82375 Standard Oil and Dye Injector for R134a Systems The Mastercool 82375 is a durable and easy-to-use tool for injecting refrigerant oil or UV dye into R134a automotive A/C systems. With its heavy-duty 2 oz metal canister and precise needle valve, this injector offers flexible operation using either system vacuum or refrigerant pressure. Technicians can add oil after evacuation by drawing it in through vacuum suction or inject it during the recharging process using system pressure. The built-in needle-style valve provides smooth, accurate control, and the tool connects easily between a manifold gauge set and charging hose using standard 1/2” ACME-M x 1/2” ACME-F fittings. Whether you're servicing a vehicle or performing routine maintenance, the 82375 is built to deliver reliable, controlled results — backed by Mastercool’s trusted support.