SPECIAL ORDER ITEM. Review Returns Policy before purchase. SharkBite EvoPEX fittings are designed for use with PEX and PE-RT tubing and are engineered as a more efficient alternative to tool-based pipe joining methods. Made in the USA, SharkBite EvoPEX fittings have a 25-year system warranty when used with SharkBite PEX tubing. SharkBite EvoPEX fittings are permanent connections, can be rotated after assembly and have a green indicator ring that confirms the proper tubing installation depth.