United Filters Intl.'s UPDN cartridges have been tested and certified by the Water Quality Assn. to NSF 42/61 standards assuring continuity of the materials and...
The Water & Wastes Digest staff invites industry professionals to nominate the water and wastewater projects they deem most remarkable and innovative for recognition in the Annual Reference Guide issue. All projects must have been in the design or construction phase over the last 18 months.