Aquatonics Pool Filter O-Ring Replacement for 21" Sta-Rite System 3, DE SD S7D75, S7M120, S7M400, S7MD60, S7MD72, S7S50 – Heavy-Duty Rubber O-Ring Replacement for 24850-0008 or O-485 — Open-Box, 38% Off

The Ideal O-Ring Replacement: The Aquatonics 24850-0008 pool O-ring replacement is designed to ensure a perfect fit for pool and spa filter tanks, creating an airtight sealing that will last for years without breaking or getting damaged with ease. Heavy-Duty Rubber Material: Made with heavy-duty rubber, our O-ring pool filter replacement is highly flexible but also super durable, being designed to withstand everyday pool usage as well as chlorine or salt damage. Leakproof Sealing: Measuring 21.2" inside diameter, 22.36" outside diameter, and 0.57" cross section, our pool filter O-ring is specially designed to create a tight seal that prevents water from leaking out of the filter, contributing in this way to the optimal functioning of your pool or spa system. Widely Compatible: The Aquatonics tank clamp O-ring replacement is compatible with 21" Sta-Rite System 3 Modular Media SM series, pool and spa DE cartridge filter model S7D75, S8D110, and it’s a suitable replacement for part numbers 24850-0008, 248500008, APCO2311, O-485, STA1012821, 90-423-1485, ALDO-485-0, STA-051-2809. Hassle-Free Installation: Our pool filter tank clamp replacement O-ring is also very easy to install. Simply put a good amount of PTFE-based lubricant around the gasket where the O-ring sits on the filter body to ensure a secure airtight seal and prevent water and air from leaking out of the filter. At Aquatonics, our mission is to provide sustainable and innovative solutions for water management in pool and spa systems and other commercial or residential uses and ensure the optimal functioning of your space without sacrificing your safety or comfort. We strive to provide reliable water solutions perfectly optimized and tailored to the needs of the community, people or planet that will never disappoint in terms of efficiency, performance and nature-friendliness. Encountering any issues with your order? Our customer care team is always at your service to answer all your questions and concerns!

O-Ring Replacement Compatible with 21" Sta-Rite System 3 Pool and Spa D.E. Filter Models

Replace the old, broken, or worn-out O-ring and make sure the spa and pool tank filter system works flawlessly without any leaks with our Aquatonics O-ring replacement! Flexible and durable, made with heavy-duty rubber, our 24850-0008 O-ring replacement provides a tight sealing that doesn’t let the air or water escape, promoting the normal functioning of your pool or spa system. The gasket is easy to replace in just a few minutes and ensures wide compatibility, for a perfect fit and long-lasting use.

Still not convinced? Here are some of the amazing features of our pool and spa O-ring replacement:

1. Heavy-duty tank clamp replacement O-ring;
2. Made with durable and flexible rubber;
3. Resistant to salt and chlorine damage;
4. Wear and tear-resistant;
5. Easy to install using PTFE-based lubricant;
6. Airtight and leakproof sealing;
7. Designed in the USA;
8. Compatible with 21" Sta-Rite System 3 Modular Media SM series, pool and spa DE cartridge filter model S7D75, S8D110, part numbers 24850-0008, 248500008, APCO2311, O-485, STA1012821, 90-423-1485, ALDO-485-0, STA-051-2809;
9. 21-inch diameter;
10. 0.57-inch thick;

Make your pool and spa system work smoothly with our 24850-0008 O-ring replacement!