Header Lateral Underdrain
Legacy Design, Reliable Performance, Modern Support
Header lateral underdrains have been a cornerstone of filtration systems for decades, providing straightforward air and water distribution through a central header with laterals extending across the filter floor. Roberts Filter Group continues to support these systems — supplying new installations where appropriate, providing OEM replacement parts, and delivering lifecycle services that extend the life of the many header lateral systems still in operation worldwide.
Why Choose Header Lateral Underdrains?
Proven Simplicity
A central header with evenly spaced laterals provides reliable air and water distribution during backwash.
Durable Construction
Designed with robust materials, header lateral systems withstand decades of municipal and industrial service.
Serviceability
Easily accessible design allows for straightforward maintenance, inspection, and part replacement.
Versatility
Effective for a variety of filter configurations, making it a widely adopted solution in both gravity and pressure filter systems.
Lifecycle Services
Roberts offers full lifecycle services to ensure header lateral underdrains continue to perform reliably:
- Inspections & Performance Audits to identify wear, maldistribution, or clogging issues
- Rehabilitation & Retrofits to replace damaged laterals or headers with modern equivalents
- Media Changeouts coordinated with underdrain inspections for maximum efficiency
- Turnkey Installation for new or replacement systems
OEM Parts & Support
Roberts Filter Group provides complete parts support for header lateral systems, including:
- Replacement laterals and nozzles
- Air and water distribution components
- Header sections and fittings
- Compatible retrofit solutions for competitor designs
Industry Applications
- Municipal gravity and pressure filters
- Groundwater treatment
- Surface water treatment plants
- Industrial process water systems
Benefits at a Glance
- Simple, reliable backwash distribution
- Long-standing, proven design
- Supported by OEM parts and services
- Retrofit options to extend service life
Still operating header lateral underdrains?
Roberts Filter Group provides the parts, expertise, and lifecycle services to keep them performing for years to come.
