Find your parts diagram
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.
Still not sure? Call (818) 818-6559 and we'll find it for you.
OEM Pentair R172385D Lid Assembly is a precise-fit replacement component for Pentair HC Series high-capacity automatic chemical feeders, compatible with models HC-3315, HC-3330, and HC-3340. This lid is built from rugged, chemical-resistant plastic that holds up to pool-grade sanitizers and acidic environments. The molded locking threads and integrated gasket ensure a pressure-retaining seal, preventing leaks and maintaining optimal feed rates during regular operation. Whether replacing a brittle or cracked lid, this cost-effective repair part extends equipment longevity and helps avoid downtime. A practical choice for value-conscious operators needing reliable, locally available parts for scheduled maintenance or emergency replacements.
- Engineered Fit: Tailored for exact compatibility with HC-3315, HC-3330, and HC-3340 chemical feeder models.
- Pressure-Holding Gasket: Includes pre-installed sealing ring that locks out leaks and supports consistent dosing.
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Made for Harsh Use: Molded from a pool-grade plastic that withstands long-term exposure to aggressive chemicals.
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Twist-Lock Functionality: Threaded lid design allows for fast replacement without specialized tools or adhesives.
- Smart Local Repair: Replace failing feeder lids with this OEM part to restore performance and minimize repair costs.
- (1) Pentair R172385D Lid
- Pentair High Capacity HC Series Automatic Feeder Models: HC-3315, HC-3330, and HC-3340.

