The Unicel 5CH-352AM Cartridge Filter is a 35-square-foot antimicrobial replacement filter engineered for Marquis spas and compatible systems. Featuring Unicel’s advanced antimicrobial pleated media, this premium cartridge inhibits bacterial growth, resists biofilm formation, and delivers long-lasting water clarity and sanitation.

Key Features

Genuine Unicel antimicrobial replacement cartridge (Model 5CH-352AM)
35 sq. ft. of pleated polyester media with antimicrobial protection
Designed specifically for Marquis® and compatible spa filter systems
Measures 5-3/16" diameter x 9-1/4" length
Includes 2" MPT (male threaded) fitting for secure installation
Antimicrobial media prevents bacteria and odor-causing biofilm buildup
Reinforced center core ensures structural strength under pressure
Resistant to spa chemicals, oils, and temperature fluctuations
Easy to clean, reinstall, and maintain for long-term use
Ideal for maintaining hygienic, crystal-clear water in residential spas

Product Overview
The Unicel 5CH-352AM Antimicrobial Cartridge Filter provides superior filtration performance and sanitation for Marquis spas. Its 35-square-foot antimicrobial pleated media not only captures dirt, debris, and oils efficiently but also actively resists microbial growth—extending filter life and improving overall water quality.

Built for strength and durability, the 5CH-352AM features a reinforced core and rugged end caps designed to handle the pressures of spa circulation systems. The antimicrobial media helps reduce maintenance frequency while keeping water cleaner between cleanings. Trusted by spa owners and professionals alike, this Unicel filter delivers exceptional clarity, safety, and reliability for long-term spa enjoyment.

Unicel | 5CH-352AM | Antimicrobial Cartridge Filter – 35 Sq. Ft. Replacement for Marquis Spas