Pump extension for replacing a 180mm pump with a modern 130mm pump...

Spanner for removing radiator tails and bleed valves Fits 3/8" and 10mm square section radiator vent plugs and bleed screws. Ideal for use with valve tails that cannot be removed using a ordinar..

Replacement Battery for Danfoss Randall MK8 series including: 811, 851, 852, 841, 842 Please check your programmers battery is removable before purchasing Note: this battery is used as a backup..

Replacement Battery for Honeywell ST699B programmers. Please check your programmers battery is removable before purchasing Note: this battery is used as a backup during a power failure it does n..

Replacement Heads for Barlo or Giacomini TRV's They have also been badged as Tower, Boss and Harp Replaces any TRV head badged Giacomini, Barlo, Tower, Boss or Harp that fixes to the body by eit..

Single Gang Pressed Steel Box 35mm Deep Complies with BS4662 Ideal for flush mounting of: Horstmann E15 Boost Timer Horstmann E30 Boost Timer Horstmann E246 Boost Timer    ..

Single Gang Surface Mounted Patress Box 45mm Deep..

Power Relay (contactor) Ideal for use with heating systems. For example: Changing a SMC programmer Switching a high current load with a low current thermostat or timer Coil: 230VAC N.O...

M30x1.5 Thread. Suitable for use with: Honeywell HR80 CM Zone radiator controllers. Pegler I-Temp Programmable TRVs. Multi-Fit Thermal Actuators. Loose packed   &nb..

900mm. Long Life Compatible with: All Major Appliances.  ..

Thermal actuator for Giacomini or Hepworth HEP2O underfloor heating manifolds. 24v Normally Closed 2-Wire Suitable for replacing the following actuators Giacomini R473 NC 24v (R473X102) Giacom..

Plug in thermostat.   Ideal for electric radiators Standard 13amp 3-pin plug -5°C to 25°C Range Suitable for appliances up to 3kw Operating Temperature: 0-40°C  ..