A full range of nylon and polypropylene pipe, hose and nozzle fittings are now available from Cleveland-based Real-Time Industrial Supply Co. Available sizes range from 1/8” to 2” in both plastic materials. Configurations include thread to thread, barb to thread and barb to barb. Nylon fittings are generally acceptable for working pressures up to 150 psi at normal room temperatures. At very low pressures, temperatures can approach 175°F without strength degradation.