Hole spacing
Measure the distance between the fixing holes of the ceramic: centre hole to centre hole. The dimensions in the HARO product list apply to ceramics with a hole spacing of 155 mm. If the hole spacing differs from this DIN dimension, you should choose a toilet seat with an eccentric hinge if possible.
Length
Measure the length of the ceramic:
Centre hole to centre front edge of ceramic (maximum). The length of a toilet seat depends on the length of the set and the adjustment range of the selected hinge. (Length of seat / adjustment range of the hinge)
The length range covered by a seat can be found in the dimensional drawing of the respective model in this product list. Some hinges from HARO have an asymmetrical design (e.g. bow hinges). The length of these hinges is also influenced by the mounting direction, i.e. two lengths can be realised: Length 1 or 2
long
Mounting variant
short
Mounting variant
Width
Measure the maximum width of the ceramic from outer edge to outer edge.