The CFE Series Compression to Female Pipe Thread Fittings is to Valves or Plastic Pipe Fittings for tube connection without kinking attached tubing. Available in NSF approved Glass-Filled White Polypropylene, FDA and NSF approved Acetal (POM) for use with hot water applications, FDA and NSF approved Nylon, and UV resistant FDA and NSF-rated PVDF. Provided with Poly gripper (except for 1/8 inch units) for us up to 220 psi.