WIPER TOP is a gulley with a square stainless steel cover and frame 122 x 122 mm made of stainless steel. This gulley is equiped with a McAlpine non-return valley (dry trap) an has a flow rate 32 l/min. The discharge outlet pipe is suitable for 40 mm and 50mm diameter pipes. The height of the drain is 143 mm. It is possible to additionally order a perforated sealing membrane with perforation and/or screw fixed stainless steel flange.