Waterway 19-inch Lateral Manifold Assembly 505-2050B — Complete Hub with Integrated Laterals, Ready-to-Install

The Waterway 505-2050 (505-2050B) is a factory-packaged 19-inch manifold hub with laterals designed to replace the internal distribution system in compatible Waterway sand filters.

If your pool sand filter isn't distributing water evenly or you're rebuilding a filter after maintenance, this preassembled manifold and lateral kit provides the internal plumbing piece that routes flow through the sand bed and back to the pump. This unit ships new in manufacturer-sealed packaging and matches the 505-2050 specification, so it’s ready to install where the original lateral manifold has cracked, clogged, or been removed during servicing.

How does this manifold assembly restore filter performance?

Replacing a damaged manifold and laterals re-establishes even flow through the filter media, reducing channeling and improving filtration consistency. The assembled hub keeps the laterals properly spaced and aligned so the filter works as intended without custom fitting or glue.

• Complete hub with integrated laterals for correct internal alignment
• Restores even water distribution across the sand bed
• Helps prevent sand migration to the pump and lines

Will this part fit my Waterway filter model?

This 505-2050B unit is manufactured to match the 505-2050 dimensions (approximately 19" height), but fit depends on your specific filter model and mounting arrangement. Always compare overall height and connection geometry to your existing assembly or consult your filter manual before ordering.

• Approximate assembled height: 19 inches
• Intended for select Waterway sand filters—verify cross-reference
• Comes new in manufacturer-sealed packaging for part authenticity

What’s included and what should I expect during installation?

The package contains the manifold hub with all laterals already attached, so there’s no need to assemble individual legs inside the tank. Installation typically involves removing the tank top, lifting out the old internal parts, seating the new assembly onto the standpipe, and reassembling the tank, taking care to follow the filter manufacturer’s reassembly guidelines.

• Includes the manifold hub assembly and all laterals
• Ships ready-to-install in sealed packaging to protect parts
• Follow your filter manual for correct seating and reassembly

How long can I expect this part to last and when should it be replaced?

Longevity depends on operating conditions, chemical balance, and mechanical stresses; with proper care the plastic laterals and hub can last many seasons. Replace the assembly if you see visible cracks, persistent sand in the pump basket, or reduced filtration that cleaning and backwashing do not correct.

• Durable molded plastic designed for underwater filter service
• Replace when cracked, clogged beyond cleaning, or leaking sand
• Regular inspection during seasonal maintenance helps extend life

Who this is for: This Waterway 505-2050B lateral manifold assembly is aimed at pool owners, service technicians, and maintenance pros who need a factory-packaged replacement part to restore sand filter function. If you’re rebuilding a compatible Waterway sand filter or replacing a worn internal distribution system and you’ve confirmed fit by model or measurement, this ready-to-install hub and laterals simplify the repair and get filtration back to proper operation.