item no.: bs-1700 water conservation bathtub size: 1700 x 750 x 600mm thickness: white 4.0 mm acrylic board stainless stand, dia 100 filter with handle shower, drainage capacity of bathing water: 230kg wooden case package / 1.74cbm q’ty for 1 x 20 feet container: 31pcs mini order: 1 x 20 feet container unit price: usd291.00fobshanghai / pc payment: t/t 30% then ordering, t/t balance upon receiving copy of b/l ship date: 25 days after receiving 30% advance payment the principle of water conservation: the bathing water be stored in the interlayer of the bathtub through filter, then connector to toilet by t connector. when push flush switch , some bathing water together pipe water will flush toilet through unidirectional valve, which can save some pipe water. of course, the overflow hose can prevent too much bathing water in the interlayer.