Dairy Inlets & Curtain System Inlets are an essential part of your complete ventilation system. They bring fresh air into your barn or building where it is properly mixed and then circulated and exhausted. A well designed and well located inlet system is more important for good ventilation than the fans themselves. At J&D Manufacturing, we offer a complete line of wall and ceiling inlets including curtain systems, aluminum and poly shutters, tunnel doors, and a wide variety of manual, actuated, counter-weighted, and baffled inlets.

Curtain System The J&D Curtain System can be installed in a fraction of the time compared to other conventional systems. Our curtain is stored tightly wound around the roll tube to extend curtain life and eliminate the collection of debris.		Aluminum Exhaust Shutters Available in 12" - 75" models. J&D Aluminum Shutters are constructed with a heavy duty extruded aluminum frame and strong welded corners all at an affordable cost.
Poly Exhaust Shutters Available in 12" - 75" models. Constructed of exterior grade PVC material, the J&D Poly Shutters will not rust, rot or corrode.		Aluminum Intake Power Shutters Available in 12" - 60" models. Aluminum Power Shutters include a 115/230V shutter motor, , lever arm, chain, S-hooks, tension springs, mounting bracket and hardware.
Aluminum Intake Power Shutter with 9' Cord Available in 12" - 60" models. We've attached a pre-wired 9' cord to our popular Aluminum Intake Power Shutter for "No Electrician Required" installation.		Pruden Adjustable Baffle Inlet J&D Manufacturing's Adjustable Baffle Inlet won't warp, sweat or rust because of its insulated, all-PVC construction. The exclusive Flexible Lip follows the contour of your building, new or old, creating an airtight seal.
Pruden Actuated Ceiling Inlet Combined with your J&D Manufacturing exhaust fans, Pruden Actuated Ceiling Inlets by J&D are designed for precise air control to direct air where you want it, when you want it.		Pruden Inlet Actuators J&D Manufacturing's Pruden Inlet Actuators are designed to work with Pruden Actuated Ceiling Inlets, and other inlet openings including wall inlets and slider curtain.
Pruden Counter Weighted Ceiling Inlet J&D's Pruden Counter-Weighted Ceiling Inlets have insulated counter balanced doors that operate automatically with increases in static pressure.		Pruden Cool Slider Wall Inlet With durable PVC construction and stainless steel guide channels, the Pruden Cool Slider Wall Inlet is a perfect solution for your tunnel ventilated applications.
4 Way Ceiling Inlet J&D's 4 Way Ceiling Inlets are single directional inlets that are manually adjusted to direct air up towards the ceiling for better mixing.		Insulated Galvanized Steel Inlet Available in 46" & 56" models. The Insulated Galvanized Steel Inlets perform well in both side wall and sloped ceiling applications.
IWP Wall Inlet Series IWP Wall Inlets are available in standard or foam filled chambers for maximum energy efficiency. Each inlet has a distinctive curved aerodynamic door design to enhance performance and efficiency.		IC Ceiling Inlet Series J&D Manufacturing's IC Ceiling Inlets are available in standard or foam filled chambers for maximum energy efficiency. Our insulating channels are twice as wide as the competitors for increased insulation capabilities.
Insulated Tunnel Doors Lower your energy bills! The J&D Insulated Tunnel Doors have an insulation value 8X better than curtain systems to keep your building draft-free.