smztools 5/16 inch cct516 core control tool, hvac charging vacuum-rated core depressor tool for r410a/r22 refrigerant charging gauge isolation tool, 800 psi air conditioning high-pressure hvac depressor pink is up for auction in Tools & Home Improvement. The current bid is $1.50, 97% below the $59.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.