Product Description Supreme Compression Flange Adapter 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 Click for Product Installation Guide