XL Coupling with stop Application Potable Water Fitting Side A Connection Type Press-Fit Fitting Side B Connection Type Press-Fit Fitting Side A Copper Tube Size 4 in Fitting Side B Copper Tube Size 4 in Fitting Material Copper O-Ring Material EPDM Specific Fitting Shape Straight Connector Overall Length 5 25/32 in Includes Center Stop Rolled Center Stop Maximum Operating Pressure 200 psi Maximum Operating Temperature 250 Degrees F Standards ASTM B75 ASTM B88