💧 Check Valve, Pentair Automatic Feeder 320, with Restrictor
Made by Rainbow/Pentair, manufacturer part number R172331.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Rainbow/Pentair |
| Manufacturer part number | R172331 |
| Plumbing Size | 1/2″ |
| Check Valve Application | Chemical Feeder |
| Check Valve Type | Ball |
| Complete Check Valve | 180 Degree |
| Catalog description | Check Valve, Pentair Automatic Feeder 320, with Restrictor |
Exploded parts diagram: This part is shown as item #6 on the Pentair Rainbow Auto Feeder Model 322 exploded parts diagram.
🔧 Pentair Rainbow Auto Feeder Model 322 – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
🔧 Exploded diagram and parts
This part belongs to the Pentair Rainbow Auto Feeder Model 322 assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Cap Wrenchs
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 1 | ![]() |
Tool, Klorkinator, Lid/Cover Removal Tool | KW-212 | 7 in stock | $106.95 | Add to cart |
| 1 | ![]() |
Cap Wrench, Pentair Rainbow High Square Foot/Auto Feeder | R172052 | 13 in stock | $49.73 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
O-Ring Chart, Aladdin | MG1 | 17 in stock | $83.58 | Add to cart |
























