On Core Filtration (OnCore) has over 60 years of filtration experience and over 30 years in the Pool and Spa market. All filter cartridges are proudly manufactured and assembled in Manning, South Carolina. OnCore specializes in aftermarket replacement Pool and Spa filters to meet the needs of the continuously growing pool and spa market. Each filter is made with state-of-the-art equipment and the best manufacturing practices guaranteeing robust end caps, strong cores and break resistant bands. With Best-In-Class filtration media and injection-molded cores, our product line up offers exceptional performance and value. OnCore prides itself with a dedicated team who are passionate about delivering quality service every day The OnCore Way: Always Fast, Always True, and Always Pure.
