The Pool Pro's Choice. Twice Over.
Two Proven Technologies. One Trusted Name.
OnCore EVERCLEAR™ and EVERFLOW™ Point Bond replacement filter cartridges are engineered to deliver exceptional water clarity, dependable performance, and long service life in demanding pool and spa environments.
Constructed with injection-molded virgin ABS cores and premium high-filament count spun-bond polyester fibers, they provide high filtration debris capacity and consistent water flow.
Durable urethane end caps resist chlorine, mildew, and chemical deterioration, creating a rugged, easy-to-maintain cartridge. Available in EverFlow Antimicrobial media options to meet a variety of filtration needs.
Premium Point-Bond Media
OnCore Filtration's exclusive Premium Point-Bond™ filtration media delivers exceptional dirt-holding capacity, powerful cleanability, and long-lasting performance. Its rigid bonded construction resists stretching and clogging, making cartridges easier to clean, extending service life, and helping pool professionals maintain crystal-clear water and customer loyalty.
SnapTech™ Core Strength
Our SnapTech™ Integrated Core Support System combines super-strong engineered injection-molded ABS cores with an open-flow design that maximizes filtration media exposure. The result is exceptional collapse resistance, superior water flow, and reliable performance season after season.
Never Sold Online. Period.
Many manufacturers claim to protect their dealers, yet their products still appear on online marketplaces through alternative sales channels - so beware of false claims. OnCore is different. We never sell our branded products online. Our dealer-exclusive distribution model protects your pricing, safeguards your margins, and ensures we never compete with the businesses that represent our brand.
Your Name Is On Every Pool You Service.
Your customers don't remember media weights. They don't remember micron ratings.
They remember one thing. Did the pool stay clean?
Every OnCore Pool & Spa Filter Cartridge is built to trade-grade standards, combining precision-engineered fit, premium filtration media and rugged core construction to deliver reliable performance from installation through to the next scheduled service. That's how OnCore helps you earn lasting customer loyalty.
Because every clean pool builds your reputation.
ONCORE. PROTECTING YOUR TIME. YOUR CUSTOMERS. YOUR REPUTATION.
SECURE YOUR MARGINS. WHERE TO BUY.
Find Your Sales RepPOINT BONDING
In modern polyester spun-bonded processes, continuous fibers are spun at high speeds and interlock to form a web, becoming the filtration media. To ensure stability, the fibers within this web must be securely locked.
Point bonding achieves this by running the web over a calendar roller with a patterned surface. The raised areas create dimples in the media, forming a strong weld pattern that locks the fibers in place while allowing movement between them, enabling the media to adapt to flow conditions and capture particles of different sizes.
In pool and spa applications, these welds promote filter cake formation, enhancing filtration efficiency over time. As water passes over the surface, it channels around the welds, improving the process.
When the filter becomes loaded (seen as decreased flow in spas or increased tank pressure), it can be removed and cleaned. The consistent weld pattern facilitates debris release, preventing full clogging of the media and simplifying cleaning.

WEB LOFT
OnCore uses low denier, high fiber count polyester media to achieve many crossover points inside the web. This creates more pores of finer consistency, allowing the media to be very efficient at removing debris. Smaller and more abundant pores achieve cleaner water sooner. Studies have shown a faster drop in turbidity (water cloudiness) when using a low denier Point Bonded media. As seen on the cross section of the web, welds on the surface of the media do not penetrate all the way through. This allows the water to travel throughout the loft of the web, working its way out the other side.
The approach of Point Bonded, low denier, high fiber count, high cross- over-point media delivers more fiber surface area than our competitors, allowing us to provide the best filtration in the market.

10” Diam = J
11” Diam = K