• Mastercool vacuum pumps are durable and time tested  • They stand up to the most grueling conditions and will provide years of reliable service  • This model is an excellent choice for small to medium sized systems (2.5 lb. to 10 lb. charge capacity)  • This two stage pump features a manifold valve to isolate it from the system and three inlet ports: 1/4” FL, 3/8” FL and 1/2” ACME (for automotive R134a systems)
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