BSP half inch threaded collar with 28 teeth x 47mm height and spline height of 7 mm x 7.8 mm spline dia. This product is suitable for SMR San Marco taps 3982R 3540R 47mm tall 28 teeth spline Fits Abode linear nero white monobloc style nexa verla zucca , Franke Cresta Textura Lugano muri rigi anteleo Textura semi pro, Hotpoint professional coil, homebase mondella concerto sleek zeus carron phonenix desire duo waverley bristan vertico john lewis profile homebase fusion . Tap Magician are the UK experts in ceramic disc tap cartridges and leaky taps. We offer high quality fully compatible tap valve spares for most UK kitchen, basin, bath and shower mixers. Easily repair and doctor your leaking or dripping hot and cold taps. Traditional or ceramic valve type. We have experienced advisors available for any technical support you need help or advice with. We stock the spare parts for all of our valves for easy and cheap low cost future maintenance (ceramic disc internals and silicone seals and washers and o'rings). We offer a 12 month warranty on all of our products.