Filbox Quad filter boxes are designed for exclusive use with Sicflux Maxx and ACI exhaust fans, ensuring efficient filtration and durability in demanding environments. Built from durable ABS plastic, they feature a square air inlet and a circular outlet, making connection to exhaust units easier. Compliance with the NBR 16401/3 standard ensures effective particle removal, contributing to a healthier work environment. Installation is simplified by tool-free connectors, and maintenance is quick thanks to an ergonomic access lid—making Filbox Quad a complete solution for external air filtration.