I need to repace the Sentinel combi guard cartridge on my boiler but local Plumb Centres don't have any, I have found one on Screwfix website but it is not Sentinel and seems unbranded. Will this have the same fitting? Are they all pretty universal? Screwfix do the cartridge and one with the 15mm fittings which seems identical to mine.
Scale Inhibitor Cartridge - Screwfix same as Sentinel
- Thread starter wifler
- Start date
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