Welch CB2052 2.3 CFM
This UL Certified vacuum pump is manufactured by Welch and private labeled specifically for Cascade Sciences customers. It is identical to Welch’s standard 2052B-01 but costs about $1,000 less. With chemical resistant PTFE diaphragms/heads it is ideal for gentle purging of solvents in 2 and 5 cubic foot sized vacuum ovens.