cUL only available to 110V model.
The Welch 2163 is a high capacity full chemical-resistant, 8-head, oil-free dry diaphragm vacuum pump with all-aluminum contact surfaces and deep vacuum capability. Oil-Free, portable, full chemical-resistant, means less maintenance and no more frequent and costly oil change, or cross contamination.
Ai is now the official dealer of Welch vacuum pumps. These pumps are made in Germany with one year warranty and technical support from Welch Vacuum.