Plastic barb products are compatible with PEX tubing and does not require gluing or soldering works in conjunction with copper crimp rings or stainless steel clamp rings * Plastic barb product works in conjunction with copper crimp or stainless steel clamp rings and can be used for potable water distribution and other water systems * Maximum working pressure for Plastic barb is 200 PSI * Plastic barb product is a solution for when corrosion may affect the DZR Brass barb fittings