Ballast Filter, Edwards E1,E2M, Part# 25907200 – vacstellar

Description

This is a Edwards ballast filter, part number 25907200, for your E1 and E2M vacuum pumps. It is also called the gas ballast air filter. This filter is a Edwards part. It is made to the exact size and material for your E1 and E2M pumps. It fits right and filters properly. this filter can get clogged with dust. When that happens, air can’t flow through it easily. The gas ballast might not work as well. It is a good idea to check it now and then and replace it if it looks dirty.an Edwards E1 or E2M vacuum pump, you have a knob or valve called the gas ballast.