Since 1991 Waterloo Biofilter Systems has been designing and manufacturing innovative on-site wastewater treatment systems for residential, commercial and municipal markets.

• See also:
• Masterformat 2004
• 33 36 00 - Utility Septic Tanks
• 33 36 33 - Utility Drainage Field
• 44 41 00 - Water Pollution Containment and Cleanup Equipment
• 44 42 00 - General Water Treatment Equipment
• 44 43 00 - Water Filtration Equipment
• 44 45 00 - Water Treatment Biological Systems Equipment
• 44 45 13 - Water Biofilters
• 46 07 00 - Packaged Water and Wastewater Treatment Equipment
• 46 50 00 - Water and Wastewater Secondary Treatment Equipment
• 46 53 00 - Biological Treatment Systems
• 46 61 00 - Filtration Equipment
• Masterformat 1995
• 02530 - Sanitary Sewerage
• 02540 - Septic Tank Systems
• 11200 - Water Supply and Treatment Equipment
• 11390 - Package Sewage Treatment Plants