冲落式连体马桶，10/12英寸坑距，680 × 375 × 810 mm

Mixed drain spacings are common in renovation work, where one block can hold 10 inch and 12 inch floor drains. Survey every bathroom before ordering. Measure from the finished wall surface to the outlet center, not from a skirting board, and write the reading beside the room number. Readings of 250 mm and 300 mm both map to HSJ-2498, while rear drains go to the 180 mm P-trap. Any other reading needs a different body, so flag it on the sheet before the order goes out.

A height of 810 mm (31.9 in) puts the tank top higher than shorter bodies in the one piece toilet range. Check window sills, wall cabinets and shelves above the toilet position against that figure. The footprint measures 680 mm (26.8 in) by 375 mm (14.8 in). That 375 mm width helps where the toilet sits between a vanity and a side partition. Mark all three dimensions on the room plan before tiling or joinery starts. Where a wall cabinet must hang lower than 810 mm, choose shorter toilets for those rooms.

A clean purchase order for HSJ-2498 lists the model, the quantity per outlet and the delivery port. Add the destination market so the correct documents travel with the shipment. Washdown flush and white ceramic are fixed, which keeps the order to three possible lines. Distributors that resell the model can send artwork for private-label cartons, and contractors can add other models from the range to the same quotation. Choosing one code for both floor-drain spacings also simplifies installation, since every crew fits the same body.