Glow Worm Central Heating Pressure Sensor (0020079644)

Glow Worm Central Heating Pressure Sensor (20079644). A Glow-worm sensor is a pressure sensor which manages the pressure of fluids like air, gas, or water within your boiler. It triggers mechanisms that ensure the pressure is safe by allowing or restricting the fluid flow. Replacement of pressure sensors on Flexicom, Ultracom and Betacom 2 boilers. Genuine brand new Glow Worm product, covered by a Glow Worm manufacturer's guarantee.