Smartline Shower Drain ( Linear,Vertical S50 Direct Connection Without Siphon ,Odor Prevent System ,With Membran Ø= 50 mm ) PH Smartline shower channel,main body without insulation skirt,top cover,are made of certified 304 quality stainless steel. It includes hair holder with anti-odor system and insulation kit (membran and flange). Material - 304 grade stainless steel - Patented without gasket part - Textile insulation membrane - Polypropylene Insulation Flange