Check the listing for details. 1 Pentek 151118,OR-241 Silicone O-Ring For High Temperature Housings R&S 241S. Color: Red, Condition: New. Listed at 8.50 USD. Material: Silicone Silicone compound offers a broad temperature range, from -80º F to +400º F, excellent dry heat resistance. Silicone has the best low temperature flexibility of all elastomers and can be used in static applications down to -150F. Silicone's also has good resistance to ozone and weather. It also proves to be a good insulator. Durometer: 70 Use the Pentek 151118 High Temperature O-Ring With: American Plumber 150015 High Temperature Housings American Plumber 150111 High Temperature Housings American Plumber 152009 High Temperature Housings American Plumber WH34 High Temperature Housings Ametek 150015 High Temperature Housings Ametek 150111 High Temperature Housings Pentek 150015 High Temperature Housings Pentek 150111 High Temperature Housings US Filter Plymouth Products 150015 High Temperature Housings US Filter Plymouth Products 150111 High Temperature Housings The Pentek 151118 O-Ring is Also Known As: American Plumber W34-ORS O-Ring US Filter D0404495 O-Ring Made In USA 30 Day Warranty Complete Return Policy O-Ring problems: Send us your old O-Ring that worked and we will find you the proper O-Ring.