The Unicel 5CH-512 Cartridge Filter is a 50-square-foot high-performance replacement filter engineered for Marquis spa and hot tub systems. Designed with precision pleated polyester media, this filter provides superior debris capture, excellent water clarity, and long-lasting durability in demanding spa environments.

Key Features

Genuine Unicel replacement cartridge filter (Model 5CH-512)
50 sq. ft. of pleated polyester media for efficient dirt and debris removal
Measures 5-3/16" diameter x 12-1/2" length
Features a 2" MPT (male threaded) fitting for secure installation
Designed for use with Marquis spa and hot tub systems
Reinforced center core ensures structural integrity under pressure
Chemical- and heat-resistant polyester media for extended lifespan
Provides balanced flow and high dirt-holding capacity
Easy to clean and reinstall for reduced maintenance frequency
Ideal for maintaining crystal-clear, hygienic spa water

Product Overview
The Unicel 5CH-512 Cartridge Filter delivers premium-quality filtration performance for Marquis spas, ensuring cleaner, clearer water and optimal circulation. With its durable pleated polyester construction, the filter efficiently captures fine debris, oils, and other contaminants that can cloud water or strain the pump system.

Engineered for strength and longevity, the reinforced internal core maintains consistent flow and structural stability, even under heavy use. Easy to service and built to withstand chemical exposure, the Unicel 5CH-512 provides dependable, low-maintenance filtration for spa owners seeking high-quality performance and reliability in their Marquis spa system.

Unicel | 5CH-512 | Cartridge Filter – 50 Sq. Ft. Replacement for Marquis Spas