27 Inch Washdown One-Piece Toilet, 10 Inch Rough-In

HSJ-1135 is a 27 inch washdown one-piece toilet, 10 inch rough-in being its only S-trap setting. Every bathroom floor drain on the job should therefore read 250 mm (10 in) when taken from the finished wall to the drain center. Sites that read 300 mm or more need a different toilet, because this SKU lists no longer S-trap version. Log each reading on the room schedule beside the toilet count, then confirm against the model spec sheet before the purchase order is released.

Rear discharge on HSJ-1135 comes from the P-trap version, printed with a 180 mm outlet. Renovation rooms where the waste leaves through the wall rather than the floor take this entry instead of the S-trap one. Both entries are floor-mounted white ceramic one piece toilet bodies under the same model code, so a single RFQ can carry S-trap and P-trap lines side by side. Flush type stays washdown on each. Mark each line with its outlet type and quantity to keep the split clear on the order.

Washdown is the one flush type printed for HSJ-1135, so every toilet on the order carries the same flush. The one piece toilet design joins toilet tank and toilet bowl in a single white ceramic body, and white is the only listed color, so the finish matches across every room. Buyers comparing products for a bathroom program can therefore fix flush and color in the first line of the specification, then use the remaining fields for outlet type, rough-in and toilet count per floor.

HSJ-1135 is listed with a length of 690 mm (27.2 in), a width of 365 mm (14.4 in) and an overall height of 790 mm (31.1 in). The 27 inch label rounds the 27.2 in length. One size is printed for this washdown model, which lists a 250 mm (10 in) S-trap rough-in and a 180 mm P-trap outlet in white ceramic. Verify against the official technical drawing before fabrication of tiled boxing or built-in furniture.