134a Lowside Thread Down Coupler w/14mm ends
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- Thread down couplers are used for hard-to-reach Schrader valves
These couplers are for use with R134a hoses only.
Instructions:
Turn knob counterclockwise to raise depressor valve. (this makes it easier to install on lowside port)
After coupler has been installed, turn knob clockwise to insert product and read pressure
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