XC Cartridge Filter AstralpoolMeet the XC Cartridge Filter Astralpool a purpose built filtration solution engineered for reliable performance, simple service, and adaptable plumbing. Designed to keep pool water clear with minimal downtime, this filter delivers straightforward maintenance without compromising filtration efficiency. Self locking ring to prevent overtightening protecting seals and ensuring a consistent, leak minimizing seal every time you service the system. Quick