Approved Refrigerants

All RLS Refrigerant Press Fittings are approved for use with refrigerants below. Contact us about s pecial blends or other refrigerants not listed here. Check your local codes to ensure that RLS fittings are suitable for use with your particular refrigerant.

R-32R-125R-134aR-143aR-152aR-227eaR-290R-404AR-407A
R-407BR-407CR-407FR-407GR-407HR-410AR-417AR-421AR-422A
R-422BR-422CR-422DR-424AR-427AR-434AR-437AR-438AR-442A
R-444AR-444BR-445AR-447A R-448AR-448AR-449AR-449BR-449C
R-450AR-451AR-451BR-452AR-452BR-453A R-454AR-454AR-454B
R-454CR-455AR-456AR-457AR-458AR-507AR-513AR-513BR-515A
R-515BR-600R-600aR-718R-1234yfR-1234zeEthylene Glycol