HVAC Tools - Refrigeration Wrench - Trout Underground- refrigeration valve wrench set ,Vintage Imperial 123C Refrigeration Valve Ratchet Wrench Tool BIN Up for auction is this Imperial 123C refrigeration wrench. Good used tool. If you have any questions please ask. My auctions end nightly between 8:00 and 8:30 PM eastern time. Check my otherrefrigeration wrench set in HVAC & Refrigeration | eBayFind refrigeration wrench set from a vast selection of HVAC & Refrigeration. Get great deals on eBay!