💧 Drain Cap, Waterway Clearwater
Made by Waterway Plastics, manufacturer part number 505-2030. It is listed for the equipment shown below, so check the model on your own unit against that list. If your old part carries one of the cross-reference numbers further down, this is listed as its alternative.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Waterway Plastics |
| Manufacturer part number | 505-2030 |
| Catalog description | Drain Cap, Waterway Clearwater |
✅ Listed for
- Waterway Carefree Sand Filter
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| Waterway Plastics | 400-6621 |
Exploded parts diagrams: This part is shown as item #14a on the Cartridge Filter, Waterway, Clearwater; item #23 on the DE Filter, Waterway, Clearwater; item #17 on the Sand Filter, Waterway, Clearwater; item #11 on the Waterway TWM Sand Filter Package exploded parts diagrams.
🔧 Cartridge Filter, Waterway, Clearwater – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Replacement Kit Coupling Assy, C/W Filter Std Base |
| – | Clrwtr "Std Base" Cart/De Cplg 2"Un X 1 1/2"Mpt |
| 18 | Tank Base, Waterway Clearwater |
| 17 | Tank Base, Waterway Clearwater, Hi-Flo |
| 16 | Standard Tank Base, Waterway Clearwater |
| 15 | Modular Tank Base, Waterway Clearwater/Carefree |
| 14a | Drain Cap, Waterway Clearwater ◀ this part |
| 14 | Drain Plug Assembly, Waterway Clearwater |
| 13 | O-Ring, Buna-N, 1-13/16" ID, 3/32" Cross Section, Generic |
| 12c | Gasket, Waterway Clearwater, Coupling, 2-1/8"ID, 2-15/16"OD |
| 12b | Coupling, Waterway Clearwater |
| 12a | Union Nut, Waterway Clearwater/Workman, 2" |
| 12 | Coupling Assembly, Waterway Clearwater |
| 11 | Pin and Anchor Assembly, Waterway Clearwater, Tank Base |
| 10 | Air Bleed Assembly, Waterway Clearwater |
| 9e | 16-270-W001K9E |
| 9d | 16-270-W001K9D |
| 9c | Center Core Segment, Waterway, Clearwater |
| 9b | Core Plate, Waterway Clearwater, Top |
| 9a | Tie Nut, Waterway Clearwater |
| 9 | 16-270-W001K9 |
| 8 | Filter Screen, Waterway Clearwater II, with Clamp |
| 7 | Lock Nut, Waterway Clearwater |
| 6 | O-Ring, Waterway Clearwater, Tank Lid |
| 5 | 16-270-W001K5 |
| 4 | O-Ring, 13/16" ID, 1/8" Cross Section, Generic |
| 3 | Air Bleed Plug, Waterway Clearwater/SmartClean/UltraClean |
| 2 | Pressure Gauge, Waterway Clearwater, Bottom Mount |
| 1 | Handle, Waterway Clearwater, Tank Lid |
🔧 Exploded diagram and parts
This part belongs to the Cartridge Filter, Waterway, Clearwater assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Gasket, Cap Sand Filter | 711-1930 | Available to order | $3.11 |

































