Heyco-Flex III liquid tight fittings and flexible tubing is available in four sizes: 3/8, 1/2, 3/4, and 1.0 in. Designed for quick and easy installation, this system offers significantly lower installed costs and all fittings are available with or without locknuts. Heyco-Flex III tubing is made of halogen-free nylon 6, is flame retardant, offers maximum flexibility with a bend radius equal to its outside diameter, and can be used in extremely tight quarters. Ideal for use in high vibration or flexing applications, these fittings and tubing provide an easy, permanent assembly between the tubing and fittings; simply push the tubing over the ferrule until the tubing "clicks" into place. The fittings and tubing are rated for Type 3R applications, are nontoxic and UV resistant, and resist corrosion, oil, and salt water.