Dometic Air Pump Check Valves_Model VHT12_VHT4500_VHT5200

A new outlet check valve assembly has been implemented on all vacuum holding-tank air pumps for models VHT12, VHT4500, and VHT5200. The new assembly replaces the brass insert and rat-tail check valve, improving the overall performance of the air pump. Pump-down time is improved by 30%, and noise is reduced by 10%.