• [Size] Square 4-1/4 Inch,2.36" central outlet. 20-25 L/min high flow capability, solving ponding problem for bathroom, pool effectively. Thicken steel cover offer a good sealing ability,Strong and sturdy. Base flange connects to drain pipe, fit standard U.S. plumbing connection. • [Material] This round drain shower made standard 304 stainless steel, base flange made of PVC construction. Drain surface plating brushed finished, protect against corrosion, scratches and rust for long-lasting durability. • [Installation] Square shower drain outlet easy to unload, fits US NO HUB Drain Base System. Can be used in bathroom, kitchen,hotel,pool, balconies, outdoor,garage, basement and toilet etc. • [Design] The Square drain cover with grid design to enhance water flowing. Prevent large items from falling,Removable hair strainer.Embedded design offer a invisible and seamless look on your floor. Thicken steel cover offer a good sealing ability.