Pool Filter Cartridge Replacement 12 Pack Overview A pack of 12 quality pleated pool filter cartridges designed as direct replacements for common cartridge models. These cartridges use trilobal fabric and DirtCatch technology to improve sediment capture and maintain filtration performance throughout the season. Key benefits particle capture: Trilobal fabric and DirtCatch technology trap more dirt, leaves, hair, sand, silt, and other debris than typical circular cloth filters, helping keep the filtration system cleaner. dirt holding capacity: Deep pleats provide more surface area for holding contaminants, reducing how often cartridges need to be cleaned during regular use. Maintains flow and performance: Engineered to sustain strong flow rates even as particles build up, so pump and system performance remain consistent. Easy to clean and maintain: Remove and rinse with water to clear trapped debris. Routine cleaning every two weeks is recommended to keep filtration effective. Durable construction: pleated fabric resists wear under heavy use. With proper maintenance, service life is approximately 1 to 2 years. Convenient multipack: Twelve cartridges in one package, ideal for replacement schedules or servicing multiple systems. Compatibility and specifications Size: 12 Pack Compatible with cartridge models: 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E Material: Pleated trilobal fabric for enhanced dirt capture Function: Sediment filtration and dirt holding for pool and spa filtration systems Practical use scenarios Seasonal replacement for a backyard cartridge filter system, supplying enough cartridges to worn elements over multiple seasons. Servicing a commercial or community pool where several filters are maintained on a regular cycle, reducing downtime and simplifying inventory. Routine maintenance for a spa or hot tub filter system, providing improved debris removal to help preserve water clarity between cleanings. Maintenance tips Rinse cartridges with a strong water spray to remove debris. For heavier buildup, soak in a recommended cleaner before rinsing. Clean cartridges about every two weeks during peak use, or more often if the pool is exposed to heavy debris. Inspect pleats for damage and cartridges when structural wear reduces filtration effectiveness. What this product solves These replacement cartridges provide reliable sediment filtration and extended dirt holding to reduce strain on your filtration system and lower the frequency of changes. The 12pack format is practical for routine maintenance schedules and multiplefilter setups, offering a straightforward way to keep pool and spa water cleaner and filtration systems operating efficiently.