Exploded parts diagrams: This part is shown as item #5 on the Waterway In-line Chlorinator (after 2002); item #5 on the Waterway Above-Ground In-line Chlorinator; item #2 on the Waterway In-Line Chlorinator (2007 & Later) exploded parts diagrams.
🔧 Waterway In-line Chlorinator (after 2002) – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 7 | 42-270-W001K7 |
| 6 | Stem Assy, WW In-Line Chlorinator(2002-2007) w/O-Ring |
| 5 | Check Valve Assy, WW Above Ground In-Line Chlorinator ◀ this part |
| 4 | 43-270-1053 |
| 3 | Filter Screen, Waterway In-Line Chlorinator (2002 and Later) |
| 2 | O-Ring, Viton-VT75, 4-3/8" ID, 3/16" Cross Section, Generic |
| 1 | Lid, Waterway In-Line Chlorinators |
🔧 Exploded diagram and parts
This part belongs to the Waterway In-line Chlorinator (after 2002) assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | |
|---|---|---|---|---|
| 1 | ![]() |
Lid, Waterway In-Line Chlorinators | 519-1167 | 4 in stock |
Parts that go with this
| Part | Our part number | Availability | |
|---|---|---|---|
![]() |
Silicone Based Lubricant 1oz 00150 | 00150 | 343 in stock |
![]() |
O-Ring Chart, Aladdin | MG1 | 17 in stock |



















