Whale 12V Pump In Line that connects into hose with a 10mm(3/8inch) internal dia or by using the included push on adapters with a 12-13mm (1/2inch) internal dia hose.
These are marketed as booster pumps to aid the delivery of water through manual pumps but are also very useful for small camper kitchens to replace a hand pump. They are limited in location because they cannot pull water up unless they are primed with water already in the hose.

Inline usage between water tank and outlet
Low noise
Operate when an electrical switch (not included) is on
Run up to 15 mins at a time
1 year warranty.