Color codes identify size in a new series of orifices from Industrial Specialties Manufacturing Inc., of Engle-wood, Colo. Molded internal orifices in nylon bodies are manufactured in a wide range of styles including barb × thread, barb × barb, plugs and threaded nipples. Numerous combinations and special fittings and orifices can be adapted. Barb × thread styles and barb × barb connectors are available from 10/32 to 1/8 NPT and 1/16 through 3/8 ID barb.