This is a Haltec 310 Valve Adapter Gun. It has a 1/2 female pipe thread and will attach to any calcium tire filling pump. It will extract the valve core from a Standard or Large Bore valve or the core housing from a tractor valve.
Haltec 310 Valve Adapter Calcium Chloride Liquid Fill Gun
Haltec N-1091 Air and Water Tire Valve Inflation Fluid Adapter Farm Tractor OTR
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3M Urethane Seam Sealer, 08367, Black Color, 310 310 Milliliter,
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