Slip coupling No stop Application Compressed Air Cooling Water Fire Protection Hydronics Marine Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type Press-Fit Fitting Side A Copper Tube Size Not Applicable Fitting Side B Copper Tube Size Not Applicable Fitting Material Carbon Steel Fitting Side A Pipe Size 1 1/2 in Fitting Side B Pipe Size 1 1/2 in O-Ring Material FKM Specific Fitting Shape Coupling No Stop Finish/Coating Zinc Nickel