Bee Valve Push-in fittings feature FDA/NSF compliance, are quick and easy to use and re-use, and are resistant to inorganic chemicals, oils, fats and synthetic detergents, the company says. The acetal copolymer fittings with nitrile rubber 0-rings can be used with polyethylene, polyurethane, polypropylene and nylon tube. Applications include water conditioning, dispensing equipment, agricultural, industrial and vacuum systems.