Keep your Max-E-Pro pool pump operating efficiently with the U9-228AZ Seal Plate O-Ring Replacement. Shasta Pool Supply offers great selection of Pentair parts. Specifically, this high-quality OEM O-Ring provides a tight, watertight seal between the seal plate and pump housing.
Sta-Rite Max-E-Pro Seal Plate O-ring O-240 U9-228A
- 10" Inner Diameter
- 1/4" Cross Section

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Open Box Pentair Plus40 Salt Chlorine Generator Cell 523735-EC
Regular price $1,509.00 USDRegular priceUnit price / perSale price $1,509.00 USD -
Pentair IntelliCenter Personality Upgrade Kit i8P | Single Body 521910
Regular price $650.00 USDRegular priceUnit price / per$1,995.00 USDSale price $650.00 USDSale -
Mushroom Propane Patio Heater SIH01-HB | SI 87" Tall Hammered Bronze w/ Pilot
Regular price $109.00 USDRegular priceUnit price / per$199.99 USDSale price $109.00 USDSale
What our customers are saying
The item I received is exactly what was displayed on the site and I received it quickly at a great price.
The item I received is exactly what was displayed on the site and I received it quickly at a great price.
Steve B
Dan was super helpful and friendly!
Dan was super helpful and friendly!
Evan B
Easy phone & email order, efficient service & pick up times met as promised. I appreciated the process & great customer service
Easy phone & email order, efficient service & pick up times met as promised. I appreciated the process & great customer service
Gale M
FAQ
Our expert staff answers customer's most asked questions.
Are there discounts on Open Box products?
Yes, we offer discounts on Open Box items. However, these prices are often too low to advertise online as they fall below Minimum Advertised Price (MAP) guidelines. Contact us directly for the best deals on Open Box products.
Do you offer warranties?
Yes. We offer extended warranties at check-out.
Should I cover my spa or pool with a custom spa cover or solar pool cover if I am heating my pool?
Yes, it is advisable to cover your pool when heating it. Failure to do so allows generated heat to escape, causing the heater to work harder and resulting in higher heating costs. Consider using a custom spa cover or solar pool cover to optimize the efficiency of your heating system.
Learning Center
Blog posts
The latest news and guides making buying and maintaining pool equipment easier.
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What Raypak Heater Error Codes Mean and How to ...
If you’ve ever glanced at your Raypak heater and seen codes like BD1, PRS, or HL1 blinking back at you, we understand how confusing they can be. Half the time,...
What Raypak Heater Error Codes Mean and How to ...
If you’ve ever glanced at your Raypak heater and seen codes like BD1, PRS, or HL1 blinking back at you, we understand how confusing they can be. Half the time,...
Learn More -
How to Fix Foamy Hot Tub Water: A Simple Soluti...
Do you find your hot tub has a layer of stubborn foam floating across the water? It’s frustrating and one of the most common issues hot tub owners face. Between...
How to Fix Foamy Hot Tub Water: A Simple Soluti...
Do you find your hot tub has a layer of stubborn foam floating across the water? It’s frustrating and one of the most common issues hot tub owners face. Between...
Learn More -
How to Calculate the Perfect BTU Heater Size fo...
Does shopping for a new pool heater feel like reading a foreign language. For most pool owners, that’s exactly what happens. You see numbers like “200K,” “350K,” or “400K BTU”...
How to Calculate the Perfect BTU Heater Size fo...
Does shopping for a new pool heater feel like reading a foreign language. For most pool owners, that’s exactly what happens. You see numbers like “200K,” “350K,” or “400K BTU”...
Learn More



