Upgrade your pool system with the Pentair 98209804 High Flow Manual Air Relief Valve. At Shasta Pool Supply we offer competitive pricing and fast shipping on genuine Pentair parts.
Pentair 98209804 High Flow Manual Air Relief Valve
Moreover the valve delivers consistent performance through its high‑flow design built for retro‑fit and upgraded Pentair filters. Furthermore its durable construction includes mounting hardware and labels for straightforward installation and long‑term dependability in demanding pool environments.

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Pentair IntelliCenter Personality Upgrade Kit i8P | Single Body 521910
Regular price $599.00 USDRegular priceUnit price / per$1,995.00 USDSale price $599.00 USDSale
What our customers are saying
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Erin A.
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
GLENN S
Chuck was amazing as always. He provided me with the spa chemicals I needed at a great price!
Chuck was amazing as always. He provided me with the spa chemicals I needed at a great price!
Suzanne E
FAQ
Our expert staff answers customer's most asked questions.
How frequently should I clean my filter cartridges?
The cleaning frequency is contingent on your filter's size. As a general guideline, initiate the cleaning process when the filter pressure exceeds the initial pressure by 10 psi. This ensures optimal filtration efficiency.
What are the ideal chemical ranges for my pool?
Achieving a balanced pool involves maintaining a pH range of 7.2–7.8, total alkalinity between 80–120 ppm, calcium hardness at 180–220 ppm, and cyanuric acid (stabilizer) within 30–50 ppm. Chlorine levels should consistently fall within the 1–3 ppm range, by may need to be increased as CYA levels go above 60 PPM.
What is better for my pool and my body: Salt Chlorinator or Chlorine Chemicals?
Opting for a salt chlorinator is a superior choice for both your pool and skin. In addition to cost savings on chemicals, it requires minimal maintenance with a 5-7 year replacement cycle on salt cells. Most salt cells have an operating life of 10,000 hours. Proper maintenance will help extend the life cycle of salt cells. Refer to your owner's manual for cleaning instructions and tips on cleaning Pentair salt cells and products that help keep all salt cells cleaner. Explore our recommended models, Gentle Chlor and IC-40, by following this link.
Learning Center
Blog posts
The latest news and guides making buying and maintaining pool equipment easier.
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What Pool Filter is Best? Hayward SwimClear vs ...
Most homeowners don’t realize how much the right cartridge filter impacts their pool. Compared to other filtration systems, cartridge filters can save up to 92% more water. This is roughly...
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Proper pool backwashing takes just a few minutes and saves hours of frustration. Many pool owners face cloudy water and poor filter performance because they skip this significant maintenance step....
How to Backwash a Pool: Simple Tricks Pool Pros...
Proper pool backwashing takes just a few minutes and saves hours of frustration. Many pool owners face cloudy water and poor filter performance because they skip this significant maintenance step....
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Updated: January 29, 2026 Who is the best pool equipment brand for water filtration?. Does buying from one of the top brands even matter in 2026? Most consumers see Pentair,...
Pentair vs Jandy vs Hayward: Best Pool Filter S...
Updated: January 29, 2026 Who is the best pool equipment brand for water filtration?. Does buying from one of the top brands even matter in 2026? Most consumers see Pentair,...
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