
Product Information
Description
- Genuine Pentair Rainbow Part
- 2 lb Spring
- Corrosion Resistant
- Free Shipping
Pentair Rainbow R172288 Corrosion Resistant Check Valve, 1-1/2 in. or 2 in. Slip
Helps protect equipment from feeder backflow.
The Pentair Rainbow R172288 is a corrosion resistant in-line check valve for 1-1/2 in. or 2 in. slip plumbing, with a 2 lb spring. Pentair lists it as the optional check valve for Rainbow automatic feeders, including the 300 series, the 320 and the HC-3315/3330/3340, where it helps keep highly concentrated sanitizer from flowing back into your heater and other equipment when the pump shuts off.
Why PST Customers Pick This
Protects Your Heater
Pentair warns that a high concentration of sanitizer flowing back into the heater or other equipment when the pump shuts off can damage it, and calls for a corrosion resistant check valve such as the R172288 to help prevent that.
Corrosion Resistant
Pentair groups the R172288 with its corrosion resistant in-line check valves in the automatic feeder accessories line.
Fits 1-1/2 or 2 in. Pipe
Pentair lists it for 1-1/2 in. or 2 in. slip connections. It is a spring check valve for PVC plumbing, with slip or spigot ends.
Listed for Rainbow Feeders
It appears as an optional part on Pentair's parts lists for the Rainbow 300, 302, 300-19 and 300-29, the 320, and the HC-3315, HC-3330 and HC-3340. It is also listed for the Rainbow 322.
Fireman's Switch on Heated Pools
Where a heater is used, Pentair requires a fireman's switch or equivalent to prevent damage to and improper operation of the check valve and other heat-sensitive equipment.
Installation Notice
Pentair warns that damage to the heater or other equipment could result from a high concentration of sanitizer flowing back into it when the pump is shut off. Pentair's feeder guides also say never to install a feeder in copper plumbing.
Specifications
| Identification | |
|---|---|
| Manufacturer | Pentair (Rainbow) |
| Part Number | R172288 |
| Pentair Description | Check Valve 1-1/2 in. or 2 in. Slip, 2 lb. spring |
| Type | Corrosion resistant in-line check valve |
| SKU | PST-43-196-1056 |
| Plumbing | |
| Pipe Size | 1-1/2 in. or 2 in. |
| Connections | Slip (slip or spigot) |
| Pipe Type | PVC |
| Body | 180 degree, complete check valve |
| Check Mechanism | |
| Check Type | Spring |
| Spring Tension | 2 lb |
| Rainbow Feeders That List It (Optional Part) | |
| 300 Series | 300, 302, 300-19, 300-29 |
| Model 320 | Listed as the 1-1/2 in. corrosion resistant check valve |
| High Capacity | HC-3315, HC-3330, HC-3340 |
| Model 322 | Rainbow 322 automatic feeder |
Frequently Asked Questions
Does my feeder come with this check valve?
Pentair lists the R172288 as an optional part on the parts lists for the Rainbow 300 series, the 320 and the HC-3315/3330/3340 feeders.
Where does it go in the plumbing?
Pentair's HC feeder guide says a corrosion resistant check valve such as the R172288 should be installed between the feeder inlet and outlet and the equipment, to help prevent equipment damage from sanitizer flowing back when the pump is shut off.
Will it fit 1-1/2 in. and 2 in. plumbing?
Yes. Pentair describes it as a check valve for 1-1/2 in. or 2 in. slip connections.
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Additional Info
| Category | Parts Pool Parts Chemical Feeder Parts |
| SKU | PST-43-196-1056 |
| MPN | R172288 |
| Replaces | 1052C20, 16389, 2114-24, 670686105506, 788379005245, RAI-451-4039, S1052C20, S1052C20CR |
| Manufacturer | Pentair |
| Weight | 0.61 lb |