Evans DM Series purge tools provide an economical, reliable, compact solution for manifolding UHP Argon purge gas. Manifold is machined out of solid block, eliminating multiple NPT/mechanical connections which reduces cost and eliminates potential leakage which can cause discoloration/contamination of the weld. All purge tools are helium leak tested to 1 x 10-9 scc/sec and guaranteed to a dry down rate of less than 10 ppb.