Brass hex flanged seal is used for polyethylene pipes and multilayer pipes and is used to seal the end of the open side of the pipe. It consists of four parts: a body with a closed side, a single insert with its appropriate sealing rings, a washer and a nut. For multiple layers, a Teflon joint is also needed. It secures the entire assembly when the nut is tightened around the clamp ring. This product is available in several diameters starting from 16 to 20 mm.