United Vacuum Corp.
Extensive inventory of Vacuum Pumps, Stokes Vacuum Pump, Stokes 412, Stokes 212, Stokes 615, Surplus Vacuum Pump, Leybold Vacuum Pump, Edwards Vacuum Pump, Busch Vacuum Pump, Rebuilt Vacuum Pump, Rotary Piston Vacuum Pump,Rotary Lobe Blower,Vacuum Pump Parts, Alcatel Vacuum Pump, Welch Vacuum Pump, Sargent Welch Vacuum Pump,UNIVAC,Becker Vacuum Pump, Varian Vacuum Pump,Vacuum Exhaust Mist Filter
http://www.unitedvacuum.com/

HyVac Products Inc.
OEM manufacturers of high vacuum pumps and equipment. Precision manufacturing services using computer numerically controlled maching (CNC). Manufacturers of vacuum pumps, gauges, fittings, filters, traps and systems. Most anything related to vacuum pressures in excess of 29' mercury vacuum.
http://www.hyvac.com/

Some Available Light Pollution and Narrow Band Filters
Review of different filters available on the market for improving views of various deep-sky objects.
http://www.prairieastronomyclub.org/filters.htm

Sharpenn Technologies
Sharpenn Technologies Pvt. Ltd. - industrial dryer, sulphur filter, industrial dryer manufacturers, sulphur filter exporters, industrial dryer exporter, vertical pressure leaf filter, industrial filter manufacturer, sulphur filter manufacturer, industrial dryer suppliers, vertical leaf filter, sulphur filter suppliers, carbon filter manufacturer, pharmaceutical filters, pharma filters, leaf filter, pressure leaf filter, rotary vacuum drum filter, cleaning filter manufacturer, self cleaning filter, industrial centrifuge from India
http://www.sharpenntechnologies.com/

Huzhou Hexing Machine Co.,Ltd.
Manufacturer of filtration equipment in China, offering vacuum belt filters, press filters, multiple-effect falling film evaporators, and fluidized bed dryers.
http://www.cn-hexing.com

Campbell Environmental Systems
aller air cleaner, blueair cleaner hepa air filters, filters, austin air austin air healthmate v.s. aller air cleaner,hepa vacuum cleaner, HEPA vacuum, air cleaner, air cleaners,replacement filters, purifier, air purifiers,hepa vacuum cleaner, allergy, h
http://www.airwaterbestprices.com/

HyVac Products, Inc.
Manufactures vacuum pumps, fittings, filters, gauges, systems for vacuum industry. Excellent products and great prices.
http://www.hyvac.com/

Astrodon
Home
http://www.astrodon.com/

Bestech Co. Ltd.
Oil sealed rotary vacuum pumps, roots vacuum pumps, dry vacuum pumps, diffusion pumps, liquid ring vacuum pumps, vacuum chambers, vacuum gauges, vacuum coating machines, leak detecters.
http://www.bestechvacuum.com/

Combined Fluid Products
Vacuum pumps: Combined Fluid Products offers vacuum pump, vacuum pumps, air knife, air knives, and air knife drying.
http://www.combinedfluidproducts.com/