KEES drop box diffusers deliver multi-directional airflow from a single point—saving on ductwork and installation. Built for expansive spaces, they offer heavy-duty durability for manufacturing, warehouses, and humid environments.
From unique dimensions to oversized builds, KEES customizes every order for precise, project-ready fit and performance.
Choose from 16 specialized product groups engineered to support a wide range of commercial and industrial applications.
Count on KEES for consistently quick turnaround times and fast shipping.
Every KEES product is manufactured domestically for dependable quality and long-term durability.
KEES three-sided, three-way drop box diffusers with drum louvers are designed as single-point air distribution systems with directional air control and high-capacity output. Install diffusers in hard and T-Bar lay-in ceilings, or connect directly to ductwork in open ceilings. Ideal for large, open-area buildings such as food processing plants, industrial facilities, gymnasiums, arenas, malls, and warehouses.
■ Galvanized steel ■ Stainless steel ■ Aluminum
■ Mill ■ Painted—standard and custom colors ■ Satin polish
■ Up to 70,000 CFM ■ Higher CFM available upon request
■ Single or double-walled ■ Insulated or non-insulated ■ Stitch welded or continuously welded
KEES three-sided, three-way drop box diffusers with drum louvers are designed as single-point air distribution systems with directional air control and high-capacity output. Install diffusers in hard and T-Bar lay-in ceilings, or connect directly to ductwork in open ceilings. Ideal for large, open-area buildings such as food processing plants, industrial facilities, gymnasiums, arenas, malls, and warehouses.
■ Galvanized steel ■ Stainless steel ■ Aluminum
■ Mill ■ Painted—standard and custom colors ■ Satin polish
■ Up to 70,000 CFM ■ Higher CFM available upon request
■ Single or double-walled ■ Insulated or non-insulated ■ Stitch welded or continuously welded
KEES four-sided, four-way drop box diffusers with drum louvers are designed as single-point air distribution systems with directional air control and high-capacity output. Install diffusers in hard and T-Bar lay-in ceilings, or connect directly to ductwork in open ceilings. Ideal for large, open-area buildings such as food processing plants, industrial facilities, gymnasiums, arenas, malls, and warehouses.
■ Galvanized steel ■ Stainless steel ■ Aluminum
■ Mill ■ Painted—standard and custom colors ■ Satin polish
■ Up to 70,000 CFM ■ Higher CFM available upon request
■ Single or double-walled ■ Insulated or non-insulated ■ Stitch welded or continuously welded
KEES six-sided, six-way drop box diffusers with drum louvers are designed as single-point air distribution systems with directional air control and high-capacity output. Install diffusers in hard and T-Bar lay-in ceilings, or connect directly to ductwork in open ceilings. Ideal for large, open-area buildings such as food processing plants, industrial facilities, gymnasiums, arenas, malls, and warehouses.
■ Galvanized steel ■ Stainless steel ■ Aluminum
■ Mill ■ Painted—standard and custom colors ■ Satin polish
■ Up to 70,000 CFM ■ Higher CFM available upon request
■ Single or double-walled ■ Insulated or non-insulated ■ Stitch welded or continuously welded
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400 S. Industrial Dr.
Elkhart Lake, WI 53020-0327