4.0” AlphaLoc O-Ring Set
High quality, high heat, chemical resistant o-ring replacements for your AlphaLoc couplers. Because one black O-ring looks just like another, these Viton® O-rings are brown for easy identification. They resist a wide range of chemicals, including gasoline, ethanol, and methanol, and are suitable for sustained temperatures up to 400 degrees. These are sets of 2 o-rings, enough for one complete AlphaLoc coupler.