2MM CS X 21MM ID BLACK EPDM 70D

The E2X21 is a black EPDM (EPR) 70 Shore A O-Ring measuring an inside diameter of 21 mm (0.827 in), a cross section of 2 mm (0.079 in), and an outside diameter of 25 mm (0.98 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, EPDM (EPR) is widely chosen for very good flexibility at low temperature, outstanding weather, ozone and sunlight resistance. It resists ozone, UV and weathering, phosphate ester hydraulic fluids, and dilute acids and alkalis. Published continuous service range is -65°F (-53.9°C) to 300°F (148.9°C). It should not be specified for service in petroleum oils and fuels or mineral oil-based lubricants.

You will find this material specified across water and steam systems, outdoor equipment, and HVAC and refrigeration.

Stocked as E2X21 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.