Honeywell

Suitable for surface or switch box mounting (fixing screws are supplied for either surface or flush mounting box)  
Normally closed SPST end switch Motor open Spring return action Manual lever for filling and draining the system Powerhead replaceable without draining down Potential...
Suitable for surface or switch box mounting (fixing screws are supplied for either surface or flush mounting box)  
Ideal for pumped systems  
Normally closed SPST end switch Motor open Spring return action Manual lever for filling and draining the system Powerhead replaceable without draining down Potential...
Compatible with 24-230V on/off appliances such as gas boilers, combiboilers and zone valves
Suitable for surface or switch box mounting  
Normally closed SPST end switch Motor open Spring return action Manual lever for filling and draining the system Powerhead replaceable without draining down Potential...
Suitable for use on non insulated and foam lagged cylinders  
Powerhead assembly can be replaced without draining down VC valve cartridges can be replaced without draining down Replacement Powerhead suitable for V4044 Motorised Zone...
Normally closed SPST end switch Motor open Spring return action Manual lever for filling and draining the system Powerhead replaceable without draining down Potential...
Powerhead assembly can be replaced without draining down VC valve cartridges can be replaced without draining down Replacement Powerhead suitable for V4044 Motorised Zone...