Easytap TZ2017 quarter turn chrome basin spindles suit Irwell federation style, ceramic disc short seat body and 12 teeth splined top. Suit cross style handle Correctly identifying the brand of taps will ensure the Easytap replacement spindle fits properly with original tap body, handles and flanges. A: If you know the tap brand (such as Dorf, Irwell, Donson etc) then simply match the same model from the Easytap range. B: If unsure as to the brand of the original tap, remove existing spindle, measure dimensions and match spindle from the range. 2 year manufacture warranty applies to Easytap ceramic disc cartridges (excludes labour). Warranty void if mechanical damage, such as over forced turning, incorrect or unlicensed installation