13mm-M x 13mm-F Low-Side Coupler Easy Connect Oil Injector Excellent method for adding refrigerant oil or large amounts of UV leak detection dye to the A/C system. Add oil by allowing vacuum to pull it in after the evacuation process, or use refrigerant to push it in using the recharge system. Rugged all metal 2 oz. canister. The easy connect models use a ball valve design attached directly onto the end of the A/C hose. Model 82374 includes a low-side coupler on the outlet hose 82374 Yes - LEAD AND LEAD COMPOUNDS