$15
A. drainage. 1. Diameter: 2 inches 2. The whole row, half the adjusting range is bigger, to adapt to the efficient water-saving toilet 3. The drainage rate: gt; 2.8 L/s 4. The remaining water: half a row of residual water level 85 mm or more, the whole row of residual water level 35-115 - mm B. Water 1. To check the water pressure range as follows: 0.02-2.1 MPa 2. Install thread optional: G1/2 3. The water filling water range: 0-31% 4. The water flow rate: 0.25 L/s 5. Unique patent design, optional delay into the water or water fast C.Three buttons. Push the (4.8 inches round face double ceramic hole diameter should be greater than 48 mm) D. Shelf life: 5 years warranty