This is a spare screw-on cap for the Aquaroll and Wastemaster. The replacement cap is suitable for post-1992 Aquarolls and all Wastemasters. Each replacement filler cap measures 80mm in diameter and is supplied with a pip and restraining strap. Founded in 1953, F L Hitchman is one of the longest established UK manufacturers of caravan accessories. This spare filler cap from F L Hitchman is suitable for both the Aquaroll (post 1992) and all Wastemasters. Each replacement filler cap measures 80mm in diameter and is supplied with pip and restraining strap.