www.pmmag.com/articles/100394-matco-norca-ispiscp-steel-insert-stiffeners

Matco-Norca ISP/ISCP Steel Insert Stiffeners
February 15, 2017
For use in potable water installations involving IPS/CTS polyethylene piping/tubing, Matco-Norca offers stainless steel 304 insert stiffeners in five sizes up to 2 inches. Designed for insertion into the inside diameter of polyethylene piping/tubing, they feature an interlocking tab design to prevent the collapse of piping/tubing ends. The stainless-steel ISP (for IPS polyethylene pipes) and ISCP (for CTS polyethylene tubes) insert stiffeners are available in both flanged and dimpled configurations in sizes ranging from ¾ inch up to 2 inches.
Matco-Norca. www.matco-norca.com