Available in black PE and euro grey PP-R, Poly-Flo® co-extruded double containment piping system is suited for installations with space constraints and systems where thermal expansion and contraction are present. Complete system includes full pressure fittings, drainage fittings, and machined fittings. Offered in 1 x 1 ½, 2 x 3, and 4 x 6 in. sizes, SDR-designed system operates up to 150 psi at 68°F. Unitary construction helps prevent failures seen in fabricated systems.