Mastercool Low Side R134a Coupler — 1/4in. M, All Metal, Model# MSC82934-E

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- Adjusts easily to R134a service ports with varying dimensions
- All metal construction for extra durability
- Patented spring loaded depressor will not damaged service valves
- Can be removed from service ports regardless of knob position without losing refrigerant
- Meets SAE, UL and EPA recommendations for containment of refrigerant
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