Rough-In Still Matters for a TOTO Washlet Toilet, Even With the Seat Included
Because you're replacing the whole toilet, rough-in — the distance from the wall to the center of the floor bolts — matters here the way it wouldn't if you were only swapping a seat.
Most sets use a standard 12-inch rough-in; the Aquia IV also offers 10-inch or 14-inch rough-in through an adapter kit, and a couple of Drake sets are sold as fixed 10-inch variants under their own product handle.
TOTO's EP WASHLET+ S7A is different again — it's wall-hung, mounts to an in-wall carrier, and has no floor rough-in measurement at all.
Measure your existing toilet or check with us before ordering.
Choosing a TOTO WASHLET Tier
Every WASHLET+ set here includes a matched toilet and one of TOTO's WASHLET seats — S2, S5, S7, or S7A — and all four tiers cover the same core wash features: heated seat, instant warm water, a warm-air dryer, a deodorizer, and EWATER+ wand cleaning.
Moving up the line buys more convenient control rather than new functions, and the S7A is the one tier that adds something the others don't — a hands-free auto open-close lid.
Sets in this collection are priced across a wide range depending on the toilet series and WASHLET tier combined; shop by budget in our $500 to $1,000 and $1,000 to $2,000 collections, or compare the individual product page for the exact WASHLET tier included with each toilet.