
Quick overview
- Genuine Waterway part Waterway Plastics 550-4470B, the factory lid rather than a universal fit substitute.
- For the 425 sq ft filter Sized to the 425 square foot Waterway filter body.
- Lid only This listing is the lid on its own, not the complete filter.
- The usual reason to buy one A lid that has cracked, crazed or distorted will not seal, and a filter that will not seal cannot hold pressure.
- Keeps the filter serviceable Replacing the lid is far cheaper than replacing the whole filter body.
- Order by part number Waterway filter lids are not interchangeable across sizes, so match 550-4470B to what you are replacing.
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Frequently bought together

Waterway 425 Sq. Ft. Replacement Filter Lid, 550-4470B
Product details
This is the Waterway Plastics 550-4470B replacement lid for the 425 square foot Waterway filter. It is the genuine Waterway part, sold on its own.
When you need one
Filter lids take the pressure and the sun, and they eventually crack, craze or warp. Once the lid stops sealing, the filter leaks or will not come up to pressure, and no amount of tightening the clamp fixes it. Replacing the lid brings the filter back without touching the rest of the assembly.
Before you order
Waterway filter lids differ by filter size, so read the number molded into the part you are removing and match it to 550-4470B. If the sealing o-ring or the clamp band is worn as well, order those at the same time.
| Brand | Waterway Plastics |
|---|---|
| Manufacturer part number | 550-4470B |
| UPC | 806105607140 |
| Type | Replacement filter lid |
| Filter size | 425 sq. ft. |
| Sold as | Each |
| Shipping weight | 21 lb |
| Ships | Parcel |
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