Unicel | C-4405 | 50 Sq. Ft. Replacement Cartridge Filter Set (2-Pack) – Fits Rainbow DSF-50

The Unicel C-4405 50 Sq. Ft. Replacement Cartridge Filter Set (2-Pack) is a premium-quality filter pair designed to deliver clear, clean water for Rainbow DSF-50 pool and spa filtration systems. Each cartridge features heavy-duty pleated polyester media that traps dirt, oils, and debris with high efficiency while maintaining excellent water flow and system pressure. The reinforced PVC core and precision-molded end caps ensure strength, durability, and a watertight seal for long-term performance. Easy to install and clean, this Unicel set provides dependable, cost-effective filtration to keep your pool or spa water pristine.

Key Features

• 2-Cartridge Set (Pair): Includes two high-performance replacement cartridges for Rainbow DSF-50 systems, ensuring full filtration coverage and balanced system flow.

• 50 Sq. Ft. Filtration Area: Combined surface area efficiently captures fine debris, dirt, and oils while maintaining consistent water pressure.

• Durable Polyester Pleated Media: Constructed from Reemay® spunbond polyester fabric for maximum dirt-holding capacity and long-lasting filtration cycles.

• Reinforced PVC Core: Provides exceptional structural integrity and prevents collapse under high pressure for reliable, long-term use.

• Easy Cleaning & Reuse: Washable and reusable media allows for quick maintenance and multiple filtration cycles, reducing long-term costs.

Product Overview
The Unicel C-4405 50 Sq. Ft. Replacement Cartridge Filter Set is the ideal choice for spa and pool owners seeking superior filtration performance and durability for Rainbow DSF-50 systems. This two-cartridge set is built to Unicel’s industry-leading standards, providing high dirt-holding capacity and long-lasting efficiency. The pleated polyester media maximizes surface area, allowing for exceptional debris capture without restricting water flow or increasing system pressure.

Each cartridge features precision-molded end caps and a reinforced PVC core for added strength and stability under high operating pressures. The materials are engineered to resist the damaging effects of chlorine, ozone, and other pool chemicals, ensuring dependable performance through repeated cleaning cycles. Installation and maintenance are simple—remove, rinse, and reinstall to keep your system performing at its best.

Whether you’re replacing worn cartridges or upgrading to Unicel’s trusted filtration quality, the C-4405 set restores your system’s performance and keeps your pool or spa water consistently clear and clean.