The Welch 2052 is a full chemical-resistant (not like its cheaper version), 4-head, oil-free dry diaphragm vacuum pump with all-PTFE 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.
Standard package includes:
- Welch 2052 2.3 cfm full chemical-resistant oil-free diaphragm pump - 1 pc
- Threaded Hose Barbs (220v unit only comes with 1pc hose barb) - 2 pc
- White premium food grade silicone vacuum hose (3 ft) - 1 pc
- Power Cord with plug - 1 pc
- User's manual - 1 pc