A951970NU11 Ideal Standard Trevi Lever Cartridge with Threaded Spline for Handle.This is a genuine Ideal Standard cartridge. Tech information for the A951970NU11 can be found below:Cartridge Length (including metal lever and locating pin at bottom of cartridge): 65mmDiameter (at widest point): 39mmType: Lever Flow CartridgeCartridge Material: Plastic Colour: White / Cream with blackNumber of Water Inlets: 2 water inlets at the bottom.The A951970NU11 cartridge is used in the following models:- E0265AA Idyll single lever one taphole bidet mixer with pop-up waste- A4515AA Defacto single lever one taphole bidet mixer with pop-up waste- A6338AA Tonic II SL Bath Shower Mixer - Exposed- E7836AA Affinity single lever one tap hole sink mixer- A6473AA Mazaro Built In Wall Mounted Basin Mixer- E0074AA Silver single lever one tap hole bidet mixer with pop-up waste- A6337AA Tonic II SL Shower Mixer - Exposed- A4514AA Defacto single lever one taphole vessel basin mixer - no waste- A7600AA Domi Solo single lever one taphole basin mixer with pop-up waste - no lever- A5537AA Defacto single lever one taphole standard basin mixer - no waste- A1165AA Class single lever one taphole basin mixer with pop-up waste - chrome lever- A4000AA Trevi Blend built-in single lever manual shower valve- A3086AA Trevi Blend exposed high flow single lever manual shower valve - for concealed or exposed pipework- E0083AA Silver single lever one taphole sink mixer- E0245AA Idyll single lever one taphole basin mixer with pop-up waste- A4513AA Defacto single lever one taphole standard basin mixer with pop-up waste- A3271AA Halo single lever one taphole bidet mixer with pop-up waste - chrome lever- A1395AA Tratto single lever one taphole basin mixer with pop-up waste - chrome lever- S7833AA Sandringham built-in manual shower valve- A1397AA Tratto single lever one taphole bidet mixer with pop-up waste - chrome lever