Similar to the CG-4440 vacuum manifold, but with BOTH ENDS OF INERT GAS LINE OPEN to permit connection to the gas source and an oil bubbler.
Hose connections have a 10mm small serration and a 11mm large serration
BUBBLERS, AIRFREE, SCHLENK
VACUUM PUMPS, WELCH, DIRECT DRIVES
VACUUM PUMPS, WELCH, BELT DRIVEN