Relieve heat buildup and prevent condensation from forming inside enclosures and other small spaces.

Mount these louvers into openings that are too small for most louvers. They are sized for use in block and brick walls.

Get an exact fit for your opening by sliding out these louvers to the width you need.

These gravity-operated louvers remain open only when air flows, preventing backdrafts.

These louvers are gravity operated. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts.

No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.

These breather vents are rated NEMA 6 to withstand periodic submersion in water.

Commonly used with high-flow, air-powered equipment, such as diaphragm pumps and valves, these mufflers reduce noise and filter exhaust fumes without restricting flow.

Replace your muffler less often—these have a filter design that stays clean longer than porous mufflers.

With a threaded connection on both ends, these mufflers can be installed anywhere in your line.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

These light duty fans are designed for use without duct.

Good when you don't have room to mount an exhaust fan inside your facility, these fans attach to an outside wall and work with or without duct.