Waveguide Gas Barrier typeWave Guide, Wave Guide Description Specification TablesTechnical Images Waveguide Gas Barrier0 specification tables: Waveguide Size Catalog Number C Gas Port Thread WR 1800 50013-13 1.38" 1/4" NPT WR 1500 50014-13 1.38" 1/4" NPT WR 1150 50015-13 1.38" 1/4" NPT technical images: *All specifications are subject to change