We are betterlinecn based in xiamen , China. We are member of Tradekey.com since August, 2009. Our business is related to Construction & Real Estate industry and we specifically deal in sanitary ware fittings. Please find our product details below:adjustable fill valve1, Float cup, to close water filling momentarily and get working water level stable.2, Optional refill tube, adjustable refill rate 0-28% by refiller knob.3, Adjust the float cup up and down by the white buckle to adjust working water level in toilet tank.4, Adjustable pole:Adjust the float and the small cup to be at same level.5, The fill valve height could be fixed by the white buckle, adjustable height 203mm-330mm.6, Optional G3/8", G1/2", G15/16"POM plastic thread and G3/8", G1/2" brass thread.7. Inside check valve prevents water in the toilet tank from back-flowing to water-supple hose.8. Filter prevents impurity from going into fill valve and easily to be cleaned.adjustable fill valve1, Float cup, to close water filling momentarily and get working water level stable.2, Optional refill tube, adjustable refill rate 0-28% by refiller knob.3, Adjust the float cup up and down by the white buckle to adjust working water level in toilet tank.4, Adjustable pole:Adjust the float and the small cup to be at same level.5, The fill valve height could be fixed by the white buckle, adjustable height 203mm-330mm.6, Optional G3/8", G1/2", G15/16"POM plastic thread and G3/8", G1/2" brass thread.7. Inside check valve prevents water in the toilet tank from back-flowing to water-supple hose.8. Filter prevents impurity from going into fill valve and easily to be cleaned.Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.