Features:&nfor for BSP;&nfor for BSP; &nfor for BSP; 3/4" x 20 teeth x 53mm Sizes are not standard!&nfor for BSP; you must check dimensions in photo before ordering to check compatibility! If your valve physically measures 3/4" across the bottom then you actually need a for BSP 1/2" size. We realise this is confusing which is why we show the full dimensions in mm. Basin taps take a for BSP 1/2" size. If you are not sure about anything please contact us before you place your order. for BSP 3/4" (Bath size)x 53mm height. 20 teeth on 7.6mm - please see full dimensions in photo. We recommend replacing cartridges in pairs. If you are only replacing remember the other is just as old as the you are replacing. If you are paying a plumber to replace you cartridges it will save you time and money replacing both at the same time. Please check the dimensions carefully before ordering to for ensure compatibility with your model Specifications: *Material: brass *Size:as the picture shows Package Contents: 1x Single Anti-clockwise (to open) 1x Single Clockwise (to open) 2x screw Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.