The plugs provide excellent leak integrity and are gas and vapor compatible. They come in brass or stainless steel in a variety of disc and holder combinations and handle burst pressures from 37 to 2,900 psig. Custom designs are available.

Elfab Ltd., Alder Rd., North Shields, Tyne & Wear, NE29 8SD, UK, 44 (0)191 293 1234,