The OEM Waterway Tank Bottom 550-4407 is a precision-molded replacement base for Crystal Water Cartridge Filters, restoring the structural foundation your filter needs to operate reliably. Engineered for universal compatibility with both legacy and current filter head styles, this tank bottom drops in without modifications or adapters. Fabricated from heavy-duty, chemical-resistant materials, it withstands sustained high-pressure operation and prolonged contact with treated pool water. Swapping in a fresh tank bottom eliminates leaks at the base, preserves internal pressure, and keeps your filtration system performing at its best.

Key Benefits

• Exact Replacement for Crystal Water Systems: Precision-molded to replace part number 550-4400, fitting seamlessly into Waterway Crystal Water Cartridge Filter assemblies.
• Rugged, Pressure-Rated Construction: Fabricated from industrial-strength materials that handle intense water pressure and chemical contact throughout years of service.
• Universal Head Style Compatibility: Engineered to work with both previous-generation and current filter head designs, requiring zero adapters or modifications.
• Restores Base Seal Integrity: Provides a dependable seal at the filter foundation, maintaining consistent internal pressure and preventing water bypass.
• Minimizes Pool Downtime: Ideal for planned maintenance or urgent repairs, ensuring your pool stays operational without extended service interruptions.

What's Included

• Tank Bottom
• Drain Plug

Compatibility

• Waterway Crystal Water Cartridge Filters

Specifications

• Brand: Waterway
• Part Number: 550-4407

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