Cap Application Caustic Chemicals Industrial Gases Compatible Copper Tube Size 4 in Fitting Connection Type Press Fit Fitting Material Stainless Steel Material Grade 316 O-Ring Material EPDM Specific Fitting Shape Cap Overall Length 3 23/32 in Includes Center Stop No Center Stop Compatible Tool Brand Viega ProPress XL- C Rings and V2 Actuator Compatible Tube Material Stainless Steel Includes Pre-Applied Thread Sealant Yes