Straight Nylon Liquid Tight Fittings with Domed Sealing Nuts are available in 7 NPT sizes for use with our 3/8" thru 2" Flexible Nonmetallic Liquid Tight Conduit and Tubing, plus 1 additional PG size for our 1/4" Flexible PVC Tubing. They are all Nylon construction, and sizes over 1" are PVC. These fittings are a reusable complete conduit/connector system which requires no disassembly or threading of the conduit/tubing to install. They are suitable for indoor/outdoor use; for original equipment manufacturers or field installers.