FITVALF U-PVC One Side Threaded Union 's General Features : * It is long-lasting, durable and environmentally friendly. * It is highly resistant to chemicals. * The color, smell and taste of the water it carries do not change. * Provides ease of assembly. The union is a single-sided female threaded nut that connects two pipes that cannot be rotated. The union is a single-sided female threaded nut that is connecting two pipes that cannot be rotated. The union is used to be connected the ends of the pipes, pool etc. that is used in areas such as plumbing. You can find Upvc One Side Threaded Union's sizes from our table. We have both DIN and ASTM standards. Size range from 20mm to 110mm in DIN standard; we can offer products in the range of 1/2 inch - 4 inch in ASTM standard. The operating pressure of the products is Pn16 in all sizes and in both standards. AREA OF USAGE: *It is used in pool systems. *It is used in clean water pipelines.