| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproof pan for a bathroom easily changeable and adjustable in the size in compliance with a construction module so as to reduce a cost and a product number. SOLUTION: In this waterproof pan 1 for a bathroom provided with a bathtub side floor pan 1, on which a bathtub is mounted, and a washing space side floor pan 2 arranged adjacently to the bathtub side floor pan 1, the bathtub side floor pan 1 and the washing space side floor pan 2 are connected together via a groove-shaped member 4 formed separately from them so as to serve as a groove part 3 for drain, and the groove-shaped member 4 is arranged so that the width dimension in the connection part can be varied.
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