Tapered Caps and Plugs from Caplugs Div., Protective Closures Co., Buffalo, are recommended for MIL Std., and SAE-type fittings, threaded external and internal N.P.T. fittings, and nonthreaded standard weight pipe. Made from pliable polyethylene, they fit snugly and are removable. The caplugs also come in green Flextemp, a flexible thermoplastic rubber for extreme temperatures ranging from –90 to 300?F. Also available in lowdensity polyethylene yellow, the WW Series has a wide, thick flange which is accepted by the aircraft industry. Shallow tube plugs, grease caps, lift-tab plugs, center-pull tapered plugs, recyclable paper caplugs, and silicone rubber closures are also available.