Cresline 18107 High Density Polyethylene Pipe, 1/2" x 400'Highlights: Size: 1 2" x 400' High density Flexible coils Order by coil 160 Psi max working pressure Hd 160 Sidr 9 Black red label white print Nsf potable water PE4710 high density, manufactured from selected resins Not to be exposed to direct sunlight for extended periods Not for use for Compressed Air Systems Use with insert fittings and stainless steel clamps Meets or exceeds ASTM D2239 NSF Approved for drinking water use Working pressures based on