Accessible MULTICRETE™ II Filter Underdrain

The MULTICRETE™ II underdrain is a monolithic cast in place underdrain with open plenum design.  It can be designed for media retaining or support gravel applications.  Special nozzles allow for combined air/water backwash or water only backwash.

Features:

• Corrosion resistant materials
• Open plenum design
• Media retaining design
• Monolithic formwork construction

Benefits:

• Long product life
• Lower headloss
• Greater hydraulic capacity
• Access to underdrain
• Eliminates support gravel
• Reduced filter depth
• Fewer people needed to install
• Structural strength with few joints

The accessible MULTICRETE™ II underdrain allows interior inspection after installation.  The open plenum design provides for uniform distribution at high rates of air and water during backwash.  It readily combines with the unique MULTIWASH® baffle to provide unlimited air-water backwashing.  MULTICRETE™ II is NSF Standard 61 approved.

Learn more from our MULTICRETE™ II Underdrain Brochure.