The complete guide
Buying Guide
There are two ways to add a bidet to a toilet without running power to it. One is a slim attachment that slides under the seat you already have. This is the other: a seat with the bidet built in, so the old one comes off and this goes on.
What you see afterwards
That is the real difference between the two.
An under seat attachment leaves a visible panel at the back of the pan and a control dial off to one side. A bidet seat looks like a toilet seat, because it is one.
Non electric, and what that rules out
No warm water. No heated seat. No air drying.
All three of those need a socket beside the toilet, and most European bathrooms simply do not have one. What this gives you is a clean rinse from the cold feed that already fills your cistern, with nothing to plug in and nothing to charge.
If warm water is the thing you actually want, you need a powered bidet seat and an electrician before you need us.
Shape is a measurement, not a preference
Round and elongated cost the same here, so there is no money in the decision. There is a fit though, and getting it wrong leaves a seat that overhangs the pan or stops short of it.
Measure from the seat bolts to the front rim. Round is typically around 43 cm and elongated around 47 to 48 cm. Measure anyway, because pan shapes vary more than two names suggest.
About those numbers in the specification
The supplier publishes a fitment diagram rather than product dimensions: section A at 300 mm, section B at 370 mm, section C at 200 mm.
Those are the toilet cover parameters the seat is designed against. They are not the size of the product in the box, and we have recorded them as fitment rather than dressing them up as dimensions. The supplier does not publish the product's own size, so neither do we.
One thing this page fixes
The listing this replaces used a single stock code for both shapes.
That meant the warehouse received an order for a bidet seat with no way of telling whether you wanted round or elongated. Each shape now carries its own code, so the right seat gets picked and sent.





