Material: EPDM - Ethylene Propylene Diene Modified Material Description: EPDM provides excellent performance in Coolant/Urea applications, and also works well in Air. Do not use in Engine Oil, Diesel Fuel, Hydraulic Oil, Automatic Transmission Fluid or Biodiesel. It has good abrasion and cut resistance. Overall Height (in): 5.91 Design Type: Quarter Round Profile