Product Description Supreme Compression Stopcock Pipe Connection compression fittings for low density and medium density polyethylene pipes (LDPE & MDPE pipes) for above and below ground use. Made by Quapus sa srl 16bar Pressure rated Metric PE Flange to NP16 Flange Pipe Connection compression fittings for low density and medium density polyethylene pipes (LDPE & MDPE pipes) for above and below ground use. Chemical Resistant WRAS Approved – WRAS Approval Number:2003327 Click for Product Installation Guide