Cap Application Compressed Air Hydronics Industrial Gases Marine Compatible Copper Tube Size Not Applicable Compatible Pipe Size 1 in Fitting Connection Type Press Fit Fitting Material Stainless Steel Material Grade 316 O-Ring Material FKM Specific Fitting Shape Cap Overall Length 2 7/16 in Maximum Operating Pressure 200 psig Maximum Operating Temperature 250 Degrees F Standards ANSI ASTM NSF DNV-GL Approved ICC Compliant LR-Type Listed UL Listed UMC Compliant