Description
Bring your filtration system back to life with the Waterway Crystal Water Filter Body w/ Labels (550-4407, Gray)—a genuine replacement lower tank designed to restore strength, reliability, and like-new performance to your Crystal Water filter.
If your current tank bottom is cracked, leaking, or showing signs of wear, this OEM filter body provides a cost-effective solution to rebuild your system without replacing the entire unit.
Restore Strength & Performance
Engineered specifically for Waterway Crystal Water cartridge and D.E. filters, this lower tank shell helps reestablish the structural integrity of your system—preventing leaks and ensuring safe operation under pressure.
Built from heavy-duty molded materials, it’s designed to withstand harsh pool chemicals, UV exposure, and everyday wear for long-lasting durability.
Smart Design with Built-In Convenience
Factory-Applied Labels
Clearly marked labels make servicing easier by identifying ports, drains, and important safety information.
Supports High-Flow Performance
Designed to work seamlessly with the Crystal Water four-cartridge system, helping maintain strong circulation and longer filtration cycles when paired with the proper internals.
Key Features
✔ Genuine Waterway OEM replacement part
✔ Durable, chemical- and UV-resistant construction
✔ Restores filter body integrity and prevents leaks
✔ Pre-labeled for easy installation and maintenance
✔ Ideal for rebuilding instead of full filter replacement
Compatibility & Specifications
- Manufacturer: Waterway
- Part Number: 550-4407 (Replaces 550-4400 | Cross refs: WWP-051-9702, WW5504400, WW5504407)
- Color: Gray with printed labels
- Component: Lower tank body only (bottom shell)
- Top Opening OD: Approx. 20.5”
- Fits: Crystal Water Cartridge Filters (typically 425 sq ft & 525 sq ft models) and compatible D.E. systems with proper internals
⚠️ Note: This listing is for the lower tank body only. Does not include cartridges, clamp band, or upper tank assembly.
A Cost-Effective Filter Rebuild Solution
Pair this replacement tank body with your existing upper shell and internal components to extend the life of your filter system—keeping your pool water clean, clear, and circulating efficiently without the expense of a full replacement.
Dependable, durable, and built to factory standards, the Waterway Crystal Water Filter Body w/ Labels is the perfect solution for restoring your filter’s performance and keeping your pool running smoothly season after season.
Pool Goods genuinely cares about what they do. It shows in their work and in the way they treat others. They are experts in their field, provide the correct information, and their experience is un-matched.
At Pool Goods®, we promise to be your partner in achieiving the perfect pool and spa environment, one that is stress-free, efficient and enjoyable.