Trevi/Sottini 1/2" Ceramic Flow Cartridges (Pair) — S8739NU
Genuine Pair 1/4 Turn Hot & Cold Kit
The S8739NU is a genuine Ideal Standard/Trevi maintenance kit containing both the A952500NU11 (Hot) and A952501NU11 (Cold) flow cartridges. Designed for high-end thermostatic shower valves like the Trevi Therm, Trevi Boost, and Sottini Alchemy, these ceramic disc cartridges provide a crisp 90-degree on/off action and a permanent drip-free seal.
Technical Specifications
- Total Height: 45.5mm (inc. screw) / 43mm (excl. screw)
- Thread Diameter: 24.8mm
- Bottom O-Ring Diameter: 23.9mm
- Spline: 9.3mm Diameter / 40-44 Teeth
- Material: Solid Brass with Ceramic Discs
Compatibility Guide
This pair fits an extensive range of Trevi shower valves including:
Trevi Therm: Mk II A3200AA, Post-1997 Built-in Mixers
Trevi Boost: Exposed & Built-in Mains Pressure Models
Trevi Outline: A3700 Built-in Valves
Sottini: Alchemy A5800 Range
Traditional: Trevi Traditional Built-in Thermostatic Valves
Sandringham: 3/4" Built-in Thermostatic Valves
Trevi Boost: Exposed & Built-in Mains Pressure Models
Trevi Outline: A3700 Built-in Valves
Sottini: Alchemy A5800 Range
Traditional: Trevi Traditional Built-in Thermostatic Valves
Sandringham: 3/4" Built-in Thermostatic Valves
Identification Tip: Ideal Standard often manufactures the plastic body of these cartridges in both black and white. The colour of the plastic body is irrelevant to performance or fitment—as long as the dimensions match, these genuine cartridges will restore your shower regardless of the colour of your old part.