British made short reach radiator pressure cap rated to 13 lb / 13 psi. Suitable for Ford Zephyr and Ford Zodiac Mk III and Mk IV models and other vehicles using this style of cap. Manufactured from mild steel with a zinc plated finish for durability and corrosion resistance. The pressure rating is stamped on the cap and marked LBS 13 – Pascal G910 for easy identification. This cap is supplied as a double sealed cap and is suitable for use on a sealed recovery system. In a sealed recovery system, the cap (double seal) allows coolant to flow to and from the recovery or expansion tank while maintaining the integrity of the cooling system. Please note: Some early pressure caps only had one seal. If your existing.