AC Infinity’s Duct Air Filter Box 6" with High Efficacy Filter is an inline filtration housing for 6-inch ducting and fans. Designed primarily for intake applications, it helps circulate fresh air while blocking dust and odors before they enter your space. The steel box with aluminum flanges features a hinge-sealed, slide-lock door and a neoprene seal to prevent bypass. It ships with a pleated high-efficacy filter rated to capture 0.3–1.0 micron particles; the chamber accepts standard 12 × 20 × 1 inch MERV replacements. Key specs include a 5.78 in (14.7 cm) duct opening, overall dimensions 23.46 × 8.42 × 11.73 in, and up to 800 CFM maximum airflow (about 1360 m³/h). Compatible with CLOUDLINE S6 and T6 inline fans.
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