R134A Air Condition Valve Core Tool, AC Valve Core Removal Tool Fit for Refrigeration Schrader Valve Core R134A R1234YF, 3 Pieces Remover Tool with 20 Pieces O-Ring Rubber Seal for Car Item Description Widely Applicable: The quick disassembly and installation device can be adjusted to adapt to different valve cores. High quality valve air conditioning valve cores are suitable for maintenance or repair of vehicle/car/automotive air conditioning, household air conditioning, HVAC Leakage Prevention Design: The carefully designed ball valve and sealing ring allow users to cut off the system when replacing the valve core, reducing the risk of leakage and refrigerant loss Perfect Fit: Fit for JRA Schrader valve core, Compatible with R134A and R1234YF automotive air conditioning systems Long Service Life: The valve core disassembly and installation kit is made of high-quality brass alloy, which is not easy to break or break, has strong sealing performance, is durable, and supports long-term applications Complete and Practical Tools: The valve core tool kit comes with 1 valve core remover tools, 10 R134a refrigeration valve cores, 20 R12 refrigeration valve cores, 5 R1234YF refrigeration valve cores, and 20 O-ring seals to meet your maintenance needs ? See more product details 1. Take a look at the disassembly of the valve core 2. Unscrew the low side (or high side, if you are fixing it) port cover 4. Insert the remover and unscrew the old valve core 6. Place the new valve core on the tappet and install the new valve core 7. Place the protective cover back on the lower port 1. Valve Core Tool Kit: Red represents high pressure (inner diameter of 16mm)/blue represents low pressure (inner diameter of 13mm) 3. Valve Core: 0.75in valve core (R12) 21 pieces/0.78in valve core (R234a) 10 pieces/0.8in (R1234YF) valve core 5 pieces 4. Sealing Washer: 10 large washers/10 small washers Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.