This 22mm filter boiler protection kit from Vaillant helps prolong the life of your boiler by removing any magnetite particles.
Small particles, from 5um (= 0.005 mm) and up are separated and removed
No shut-off valves or bypass required
22 mm version suitable for boilers with heating output up to 27kW. 28 mm version suitable for boilers with heating output of 28 to 45kW.
Maximising system performance.
Instant operation as soon as the system is up and running.
Provides extended guarantees on some Vaillant boiler installations, when registered on Advance (Subject To Manufacturers T's & C's)