💧 Drain Cap, Waterway Pro Clean
Made by Waterway Plastics, manufacturer part number 550-0240.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Waterway Plastics |
| Manufacturer part number | 550-0240 |
| Catalog description | Drain Cap, Waterway Pro Clean |
Exploded parts diagram: This part is shown as item #6 on the Cartridge Filter, Waterway, Pro Clean exploded parts diagram.
🔧 Cartridge Filter, Waterway, Pro Clean – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Lock Ring, Waterway Pro Clean Plus (Boxed) |
| 9 | Air Release Valve, Waterway Pro Clean, with O-Ring |
| 8 | 16-270-W019K8 |
| 7f | 16-270-W019K7F |
| 7e | 16-270-W019K7E |
| 7d | 16-270-W019K7D |
| 7c | 16-270-W019K7C |
| 7b | 16-270-W019K7B |
| 7a | 16-270-W019K7A |
| 6 | Drain Cap, Waterway Pro Clean ◀ this part |
| 5 | Diverter, Waterway Pro Clean |
| 4 | Tank Body, Waterway Pro Clean Plus, w/ Lock Ring |
| 3 | 16-270-W019K3 |
| 2 | 16-270-W019K2 |
| 1 | Pressure Gauge, Waterway Pro Clean |
🔧 Exploded diagram and parts
This part belongs to the Cartridge Filter, Waterway, Pro Clean assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 5 | ![]() |
Diverter, Waterway Pro Clean | 519-0221 | 9 in stock | $8.61 | Add to cart |
| 8 | ![]() |
Bleed Tube, Waterway Pro Clean 75/100 sqft, 1/4" x 21" | 872-4000E | Available to order | $2.72 | |
| 8 | ![]() |
Bleed Tube, Waterway Pro Clean 175/200 sqft, 1/4" x 30" | 872-4000F | Available to order | $7.27 | |
| 9 | ![]() |
Air Release Valve, Waterway Pro Clean, with O-Ring | 600-0200 | 24 in stock | $9.57 | Add to cart |












