💧 Check Valve, Pentair Rainbow Automatic Feeder 322, 1-1/2x 2
Made by Rainbow/Pentair, manufacturer part number R172288. If your old part carries one of the cross-reference numbers further down, this is listed as its alternative.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Rainbow/Pentair |
| Manufacturer part number | R172288 |
| Plumbing Size | 1-1/2″, 2″ |
| Check Valve Application | Chemical Feeder |
| Check Valve Type | Spring |
| Complete Check Valve | 180 Degree |
| Spring Tension | 2 lbs |
| Catalog description | Check Valve, Pentair Rainbow Automatic Feeder 322, 1-1/2x 2 |
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| Flo Control | 1012-15 |
| Flo Control | 1052C20 |
Exploded parts diagrams: This part is shown as item #23 on the Pentair Rainbow Auto Feeder Models 300,302,300-19, 300-29; item #19 on the Pentair Rainbow Auto Feeder Model 320; item #17 on the Pentair Rainbow Auto Feeder Model 322 exploded parts diagrams.
🔧 Pentair Rainbow Auto Feeder Models 300,302,300-19, 300-29 – 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 Models 300, 302, 300-19, 300-29 assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete tablet feeders
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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Rainbow Chemical Feeder R171016 | R171016 | 18 in stock | $130.11 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
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O-Ring Chart, Aladdin | MG1 | 17 in stock | $83.58 | Add to cart |







































