Pacer II®

Compact Clarifier + Filter for High-Performance Surface Water Treatment

The Pacer II® from Roberts Filter Group combines an upflow contact clarifier with a downflow gravity filter in a single steel-tank unit. Designed for surface water sources with high turbidity or challenging organics, the Pacer II® achieves up to 3-log removal of common contaminants in a compact, factory-built design. With proven performance and decades of installations, it remains one of the most trusted packaged treatment solutions for municipalities and industries alike.

Why Choose Pacer II®?

Integrated Clarifier + Filter
Combines upflow clarification and downflow filtration in one unit, reducing footprint and construction cost.

High Removal Efficiency
Provides reliable removal of turbidity, algae, color, and pathogens — achieving regulatory compliance for small to mid-size systems.

Factory-Built Reliability
Constructed in a steel tank and delivered as a packaged unit, simplifying installation and startup.

Scalable Design
Multiple Pacer II® units can be operated in parallel to meet higher flows or provide redundancy.

Typical Applications

  • Small to mid-size municipal drinking water plants

  • Surface water treatment with seasonal turbidity and organics

  • Industrial process water treatment

  • Emergency or temporary treatment needs

  • Plant expansions where footprint is limited

Key Benefits

  • Upflow contact clarifier + downflow filter in one system

  • Compact design for faster installation and smaller footprint

  • Proven performance in surface water treatment applications

  • Expandable capacity with parallel units

  • Backed by Roberts Filter Group’s lifecycle services


Lifecycle Services

Every Pacer II® installation is supported by Roberts Filter Group’s complete lifecycle offerings:


  • Pilot Studies to validate performance under site-specific conditions

  • Turnkey Installation & Commissioning

  • Operator Training for confident system operation

  • Inspections, Media Changeouts, & Retrofits to extend long-term reliability

Need a compact, proven solution for surface water treatment?


The Pacer II® delivers clarification and filtration in one reliable package — backed by over a century of Roberts innovation.

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