Switchable / Variable water pump: All you need to know

A variable water pump is a mechanical water pumps that allow the impeller to move or not the coolant through the cooling circuit.

Tornado Tools Green Expert 1/2HP Submersible Utility Pump with Built-In Switch Manual/Automatic On/Off Switchable for Both Clean Dirty Water 203612

Engine systems Schaeffler Greater China

Waterproof New Style Constant Pressure Variable Speed Water Pump Controller - China Pump Controller, Waterproof Controller

【Specific】: 115V, 60 HZ, 3-speed power 100/70/55 watts, 1/25 - 1/8 HP, up to 20 feet head, max working pressure 10 bar(145 PSI). Max flow 17 GPM.

JASSFERRY Recirculation Pump 1 Inch Hot Water Recirculating System 1/8 HP Circulating Pumps Replacement for Solar Water Heater Boiler Circulation Cast

Vibiemme DOMOBAR SUPER HX Switchable/Rotary Pump (Manual) Espresso Mac – The Concentrated Cup

Nfpa Diesel Engine Submersible Multistage Turbine Fire Pump - China Diesel Engine Pump, Fire Pump

15A DIMMER SWITCH QVR/S VARIABLE AC VOLTAGE REGULATOR HEAT LAMP DISPLAY UNITS

Smartbot Submersible water pump Flow Rate 3000 GPH, Max Lift 25 Ft, 1/2 HP, 2 Hose Kit, Small Portable Electric Utility Pump, Hand Manual switch (Yellow) Plug-and-Play to work - Yahoo Shopping

Hepu water pump from VW for the CVCA and CRUA engines. This is a switchable/variable pump where the impeller will move inside and outside of a shield

Water Pump - Switchable [Hepu] (CVCA CRUA)

Pressure switch Water Pump Accessories at

BOKYWOX Centrifugal Pump NPT 3/4'' Automatic Booster Pump 120W Hot Water Recirculating Pump Stainless Steel 304 for Faucet/Solar Heater(LRS12-9G) - Yahoo Shopping