UK trade guide 3 min readUpdated 11 July 2026
How to Replace a Bristan Renaissance Bath Filler Cartridge (UK)
Swap a ceramic-disc cartridge in a Bristan Renaissance Bath Filler tap. UK isolators, splines, torque.
Bristan
The cartridge
The Bristan Renaissance Bath Filler uses a ceramic-disc cartridge. Note whether hot and cold are separate (dual-flow) or a single mixer cartridge before ordering.
Isolate
Turn off cold and hot at the flexi isolators below the basin. Open the tap to drop pressure. Remove the handle cap, undo the grub screw and lift the handle.
Swap
Loosen the retaining nut on the Bristan Renaissance Bath Filler. Lift out the cartridge. Fit new O-rings, silicone-grease the body, drop the new cartridge in — align the anti-rotation tabs.
Reassemble in reverse. Test at full flow for 60 s, check under the basin for leaks.
Frequently asked questions
- Does Bristan sell Renaissance Bath Filler genuine spares?
- Yes — Bristan publishes exploded diagrams and part numbers for every Renaissance Bath Filler on their UK support site.
- Standard or reverse cartridge?
- Kitchen mono taps like the Bristan Renaissance Bath Filler usually use a 40 mm reverse cartridge. Basin mono taps use 35 mm standard.