🔧 What this part is
Waterway Plastics Bypass Valve, WW In-Line/Top Load/Top Mount/Front Access, 2", part number 600-1040.
Size as listed: 2".
✅ Check before you order
- Measure the part you are replacing – this one is listed as 2".
- The number on the old part should read 600-1040, or the maker’s equivalent.
- Not sure? Send us a photo of the old part and any number on it, and we will tell you whether this is the one.
🔧 Exploded diagram and parts
This part belongs to the Top Load Filter, Waterway assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete ro-kit 278s
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Ro-Kit 278, Waterway In-Line and Top Load Filters | RO-KIT 278 | 5 in stock | $8.46 | Add to cart |
Complete cartridge filters
Show 4 complete cartridge filters we stock
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 18 | ![]() |
Waterway Filter Assembly 502-2510 | 502-2510 | 15 in stock | $174.89 | Add to cart |
| 18 | ![]() |
Waterway Filter Assembly 502-5010 | 502-5010 | 33 in stock | $190.61 | Add to cart |
| 19 | ![]() |
Waterway Filter Assembly 502-7510 | 502-7510 | 12 in stock | $224.61 | Add to cart |
| 19 | ![]() |
Waterway Filter Assembly 502-9910 | 502-9910 | 7 in stock | $242.10 | Add to cart |










































