Mastercool 82934-E Blue Low-Side Manual Coupler Retainer Chuck while the random orbital action

while the random orbital action ensures a swirl-free finish on every pass

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Mastercool 82934-E Blue Low-Side Manual Coupler Retainer Chuck while the random orbital actionPatented manual couplers adjust easily to R134a service ports with varying dimensions. All metal construction for extra durability. Patented, spring loaded depressor will not damage service valves. Can be removed from service ports regardless of knob position without losing refrigerant. Meets SAE, UL and EPA requirements for containment of refrigerant. Color coded. Patent# 5,370,359Low Side Manual R134a 1 4? FL M x 13 mm Quick Coupler Features