
Pentair Rainbow 1/2-Inch Control Valve for Automatic Chlorine/Bromine Feeders, R172086Z
30 day returns · Easy, with prepaid labels provided
Quick overview
- Genuine Pentair OEM Rainbow control valve, not an aftermarket copy.
- Fits three feeders Rainbow models 320, 322 and 300-29X.
- 1/2 in. threaded the connection measures 1/2 in.
- Also R172086 the same valve under the older number.
- Meters the feed this is the valve that sets how much water passes through the feeder.
- Simple swap replaces a valve that no longer holds its setting or leaks.
Need a hand?
Frequently bought together

Rainbow 1/2-Inch Control Valve for Automatic Chlorine/Bromine Feeders, R172086Z
Similar products
Other products people compare with this one.
Pentair Chlorine Valve .25 in. Tube Control Valve with Compression Nut, R172060Z$3299
Pentair R172022 Old Style Chlorine Control Valve$3399
Pentair Rainbow Automatic Feeder 320, Body Only, R172321$5799
Pentair Parts Bag for Rainbow Chlorinator 300, R172064$5399
Pentair Rainbow 1/2" Tube x Tube Check Valve, Spring Style, R172324$3999
Pentair Rainbow HC Series Chlorinator Lid Assembly, R172385D$3799
Pentair Rainbow Slip x Slip x 1-1/2" NPT Diverter Tee, R172317$3299
Pentair Rainbow Chlorinator Cap Wrench, R172052$3699
Pentair Rainbow Chlorinator Extension 10", R172087$4899
Pentair Rainbow 1" Threaded Union, HC Series, R270531$2899
Pentair Chlorinator Drain Kit for Model 300-29X Chemical Feeder, R172002$6299
Pentair Flow Meter, R172276$7399
Pentair 1/2" I.D. x 12' Chlorinator Tube, R172269$3299
Pentair FLOW METER 300/302/300-29 | R172080$3999
Pentair Rainbow HC Series Control Valve, R172439$8299
Pentair Rainbow Chlorine Chamber for 300 and 320 Series Chlorinators, R172037$2499
Pentair 1/2" Drain Valve for Rainbow Chlorinators, R175009$2399
Pentair 1/2" Check Valve, Rainbow Automatic Feeder 320, R172248Z$1599
Pentair O-Ring for Rainbow Dynamic Series Drain and Vent Valve, R172221Z$499
Pentair Lock Screw for Rainbow 320 and 322 Feeders, R01052$499
Product details
The Pentair R172086Z is the genuine 1/2 in. control valve for Rainbow automatic chlorine and bromine feeders. It fits models 320, 322 and 300-29X, and it is the same part that was previously numbered R172086.
What it does
The control valve regulates how much water flows through the feeder, which in turn sets how fast the tablets dissolve and how much chlorine or bromine goes to the pool. When the valve seizes, leaks at its threads or drifts off its setting, the feed rate becomes a guess. Swapping the valve puts the adjustment back under control.
Before you order
Confirm your feeder is a 320, 322 or 300-29X and that the connection is the 1/2 in. thread. The related tubing, compression nut and elbow are separate parts if you are rebuilding the whole feed line.
| Brand | Pentair |
|---|---|
| Manufacturer part number | R172086Z |
| Alternate part number | R172086 |
| UPC | 788379885120 |
| Part | 1/2-Inch Control Valve |
| Connection | 1/2-inch threaded |
| Fits | Pentair Rainbow automatic chlorine/bromine feeders, models 320, 322, 300-29X |
| Shipping weight | 0.2 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
From Pentair
Pentair equipment
Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001
Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028
Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301
Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Genuine Pentair parts
Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198
Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800
Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400
Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z



Customer reviews
More from Pentair
Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001$1,48900
Pentair SuperFlo 1 HP Single Speed Pool Pump, 115/230V, EC-348190$74800
Pentair WhisperFlo VS 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900
Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20999
Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900
Web Price
Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$40499
Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199
Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900
Web Price
Pentair Rainbow 320 In-Line Chlorinator, R171096$14999
Pentair Genuine OEM Clamp Kit with Tension Control, 190003$31099
Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,15699
Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, EC-011057$2,39900
Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$47999
Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$30899
Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$39599
Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$30799
Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$29699
Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900
Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$40599
Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900
Web Price
Questions and answers
What people ask about this product, answered by our pool techs.
Which feeders does it fit?
Is R172086 the same part?
What size is the connection?
Why would I replace it?
Get your unadvertised price ›






