Ideal Standard Trevi Therm MK1 Thermostatic Cartridge — A963068NU
The Ideal Standard A963068NU is the authentic thermostatic cartridge assembly engineered specifically for Trevi Therm and Trevi Traditional Mark 1 (MK1) shower mixer valves manufactured prior to 1997. Built from solid machined brass, this cartridge regulates water temperature and provides thermal shutdown protection. Featuring a 28mm AF hexagonal head nut for removal and installation, it comes fitted with 3 external sealing O-rings and 2 integrated fine-mesh stainless steel filter gauzes to shield the internal thermostatic mechanism from line debris.
Identification Guide:
MPN: A963068NU | Internal Part Code: FTB4026 | Legacy Barcode / EAN: 5055639195134 | Fitting Type: Screw-in (28mm A/F Hex Head) | Material: Brass | Seals & Gauzes: 3 External O-Rings, 2 Wire Mesh Gauzes | Compatibility: Pre-1997 MK1 Models Only
Key Features
- Precision Temperature Control: Restores reliable thermostatic blending and automatic safety shut-off in the event of cold water supply failure.
- Direct MK1 Screw-In Design: Machined thread designed specifically to screw into pre-1997 valve bodies via a standard 28mm spanner or box wrench.
- Debris Protection: Fitted with 2 heavy-duty stainless steel wire mesh filter gauzes to trap circulating pipe scale and grit.
- Pre-Fitted Gaskets: Supplied with 3 external rubber O-rings pre-installed to ensure a watertight internal seal between hot, cold, and mixed waterways.
Compatibility & Verification Guide
Confirmed Compatible Pre-1997 Models:
- Trevi Therm MK1 Built-In (Concealed) 300 Shower Valve
- Trevi Therm MK1 Exposed 310 Shower Valve
- Trevi Traditional MK1 Built-In (Concealed) Shower Valve
Critical Fitment Warning: This cartridge is strictly for Pre-1997 MK1 valves featuring the 28mm hexagonal brass nut. It will NOT fit post-1997 MK2 Trevi Therm or Trevi Outline valves (which use cartridge A954130NU / A954352NU with a brass clip/push-pull fitting). Please verify your valve age and removal method prior to purchasing to avoid incorrect orders.