Easytap TZ2001 quarter turn Dorf bib or pillar tap spindles ceramic disc flat sided top. Suit booster style tap handles 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