Pentair 521377 IntellipH pH controller with 4 gallon acid containerPentair IntellipH pH Controller with Acid Container, 4 Gallon, 521377 In stock$90399
Pentair 521377 IntellipH pH controller with 4 gallon acid container

Pentair IntellipH pH Controller with Acid Container, 4 Gallon, 521377

Ask a questionMPN 521377
$90399
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Quick overview

  • Automatic acid dosing Feeds muriatic acid into the pool on its own instead of waiting for someone to pour it in by hand.
  • 4 gallon container The acid container is part of the package, sized to go a long stretch between refills.
  • Stops pH drift Small, frequent corrections keep pH level rather than letting it climb and get knocked back down.
  • Pairs with IntelliChlor Built as the companion to the IntelliChlor salt chlorine generator, which sanitizes while this holds the balance.
  • Safer than hand dosing Acid stays in a sealed container and is metered out, so nobody handles an open jug at the pool edge.
  • Genuine Pentair Pentair part 521377, the factory IntellipH package.
Full description and specifications ↓

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Product details

The Pentair 521377 IntellipH is an automatic pH controller supplied with a 4 gallon acid container. It doses muriatic acid into the pool as needed so the pH sits where it should instead of drifting between service visits.

Why pH will not hold still

Pool water does not stay in balance on its own, and a salt pool in particular tends to climb in pH as chlorine is generated. The usual answer is someone with a jug of acid every few days, which produces a sawtooth: too high, corrected too far, back up again. Continuous small corrections hold a flatter line, and that is what an automatic controller is for.

Working alongside IntelliChlor

IntellipH is designed as the companion to the IntelliChlor salt chlorine generator. The chlorinator handles sanitizer, the controller handles balance, and between them the water stays clear without a manual dosing routine.

The container

Acid lives in the supplied 4 gallon container rather than in an open jug at the pool edge, and the system meters it out. Refills come around far less often than manual dosing did.

Specifications
Brand Pentair
Manufacturer part number 521377
UPC 788379847982
Type pH controller with acid container
Series IntellipH
Container capacity 4 gal
Chemical Muriatic acid
Designed to pair with Pentair IntelliChlor Salt Chlorine Generator
Shipping weight 17.6 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What chemical does it use?
Muriatic acid. The IntellipH meters acid from its container into the pool to bring pH down as it rises.
How big is the acid container?
4 gallons, and it comes with the unit.
Does it work with IntelliChlor?
Yes. IntellipH is built as the companion to the IntelliChlor salt chlorine generator. IntelliChlor handles sanitizer while IntellipH handles pH, and together they keep the water sanitized and balanced.
Why does a salt pool need pH control?
Generating chlorine pushes pH upward over time. Left alone it climbs, so a controller that trims it back continuously does the job that would otherwise mean adding acid by hand every few days.
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