Whale Watermaster Replacement pump, compatible with the Truma Crystal II Sockets only.  Excellent pump performance

•  No need for extra adaptors
•  Kink resistant, wipe clean hose makes for easy storage season after season 
• Easy-fit plug  No awkward tabs

The Watermaster with Premium pump and plug is compatible with the Truma Crystal II / Compact sockets only (light blue hose) Suitable for microswitched or pressurised water systems