💧 Winterizing Cap, Jandy Pro Series TruClear Chlorinator
Made by Zodiac, manufacturer part number R0621900.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Zodiac |
| Manufacturer part number | R0621900 |
| Model | TruClear |
| Salt Chlorinator Part Type | Winterizing Cap |
| Catalog description | Winterizing Cap, Jandy Pro Series TruClear Chlorinator |
Exploded parts diagram: This part is shown as item #1 on the Zodiac TruClear Salt Chlorinator exploded parts diagram.
🔧 Zodiac TruClear Salt Chlorinator – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Transformer Assembly, Jandy Pro Series TruClear Chlorinator |
| – | 42-100-1020 |
| – | 42-100-1025 |
| 9 | Cable Replacement, Jandy TruClear11K, Cell Side Assembly |
| 8 | O-Ring, Zodiac Jandy WFTR, Union, Quantity 2 |
| 7 | PCB Replacement, Jandy Pro Series TruClear Chlorinator |
| 6 | 42-100-W001K6 |
| 5 | Cover Replacement, Jandy Pro Series TruClear Power Pack |
| 4 | Housing Replacement, Jandy TruClear |
| 3 | O-Ring, Jandy Pro Series TruClear Chlorinator, OEM |
| 2 | Cell Replacement, Jandy Pro Series TruClear Chlorinator |
| 1 | Winterizing Cap, Jandy Pro Series TruClear Chlorinator ◀ this part |
🔧 Exploded diagram and parts
This part belongs to the Zodiac TruClear Salt Chlorinator assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 3 | ![]() |
O-Ring, Jandy Pro Series TruClear Chlorinator, OEM | R0694100 | 14 in stock | $23.19 | Add to cart |
| 8 | ![]() |
O-Ring, Zodiac Jandy WFTR, Union, Quantity 2 | R0449200 | 8 in stock | $13.27 | Add to cart |
















