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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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R172086 | Pentair In Line Chlorinator 320 Control Valve
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Pentair R172086 control valve is a direct-fit replacement part for the 320 and 322 in-line automatic chlorine/bromine feeder systems — and select 300-series off-line feeders — giving you precise flow control over chemical feed rates. Engineered as a ½-inch FPT valve, it regulates water flow into the feeder unit, thereby controlling chlorine or bromine output for consistent pool sanitation. Constructed from chemical-resistant materials suitable for chlorinated pool water, this valve ensures reliable performance and helps maintain proper water balance and sanitation levels.
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OEM Replacement Valve: Designed specifically for Pentair Rainbow 320, 322, and related feeder models — ensures proper fit and installation with no modification needed.
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½-Inch FPT Connection: Standard female pipe thread size ensures compatibility with typical plumbing on automatic feeders.
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Precise Flow Control: Regulates water feed into the feeder unit to maintain stable chlorine/bromine levels and optimize chemical usage.
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Chemical-Resistant Construction: Built to withstand exposure to chlorine/bromine and pool water conditions without degradation — for long-term durability.
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Essential for Feeder Function: A fully functional control valve is critical for correct feeder operation; replacing a faulty valve restores chemical feed reliability and pool hygiene.
- Pentair In-Line Rainbow Chemical Feeder Models: 320, 322, 300-29X