Dayton 4YN99 Air Curtain Cabinet Stainless Steel 48x12x15-3/4

Stainless Steel Air Curtain Cabinet

The Dayton 4YN99 is a stainless steel air curtain cabinet designed for doorways up to 48 inches wide. It mounts above an opening to create a high-velocity air barrier that separates indoor and outdoor environments. The painted silver housing measures 15 3/4 inches tall and 13 inches deep. This new accessory is built for commercial and industrial doorways.

Suited for Standard Doorways and Dayton Fans

This cabinet fits facilities that need climate separation across a 48-inch span and already use compatible Dayton air curtain units. It works with Grainger part numbers 6E815 and 6E821 for a matched installation. Buyers who need a different housing width, a non-stainless finish, or a cabinet for a smaller residential door should look at other configurations.

Build Integration and Clearance

The closed-base design sits flush above the doorway and requires secure overhead mounting to structural framing. Its 13-inch depth and 15 3/4-inch height determine the soffit or header space needed. The unit frees up floor area by eliminating the need for freestanding barriers or strip curtains. Electrical supply and any control wiring must be routed to the cabinet location during installation.