- L-Series Liqua-Seal Connectors are made of steel with a chromium zinc plating on the body, ferrule, locknut and clamp nut to prevent corrosion under the most adverse of conditions. Rated IP 65, these connectors are UL Listed & CSA Certified with a watertight and oiltight design that provides strain relief and reduces stress on components and termination points. L-Series connectors are available in straight, 90° and 45° body styles and are also available with insulated throats and wire mesh grips. Zinc-Plated Malleable Iron & Die-Cast Zinc versions are also available.