Our Tri Clamp Protection Rings are a great solution for protecting the sanitary fittings on your beer transfer hose assemblies. Applications Rubber Protection Rings, ideal for food processing applications to lift fitting off of floor and to protect both floor & fitting from scratching caused from dropping fitting. The ID of the protection ring is the same size as the OD of the hose or a bit smaller because it has to fit tight to the hose in order to not slide off.When ordering, please specify the size of the hose and the correct protection ring will be shipped to you. Specifications Construction Tube: Natural Rubber/SBR Blend Temperature Range: -4°F to 176°F (-20°C to 80°C)