Pipe Diffusers | McMaster-Carr

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610 Products

Diffusers, Registers, and Grilles

Ready-to-Connect Drop-Ceiling Diffusers

No additional fittings or collars needed.

Drop-Ceiling Diffusers

Place these diffusers in the grid of a drop ceiling to distribute air evenly throughout your space.

Dampers for Drop-Ceiling Diffusers

These dampers regulate airflow.

Ready-to-Connect Moisture-Resistant
Drop-Ceiling Diffusers

No additional fittings or collars needed.

Moisture-Resistant Drop-Ceiling Diffusers

A vapor barrier provides moisture protection as these diffusers spread hot or cold air around a room.

Snap-On Collars for Drop-Ceiling Diffusers

Connect diffusers to duct.

Ceiling Diffusers

Evenly disperse airflow into a room to maintain a consistent temperature throughout the space.

Ready-to-Connect Ceiling Diffusers

Diffusers come with a collar and damper already in place for simple installation.

Wall/Ceiling Registers

Direct air coming out of HVAC systems. Adjust the damper to control airflow.

Floor Registers

Install onto floor ducts to direct hot and cold air from your HVAC system.

Air Diverters

Guide air toward your workspace or deflect unwanted drafts with these diverters and covers.

Mufflers

Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.

Corrosion-Resistant Mufflers

Made entirely of stainless steel, these mufflers stand up to harsh, corrosive environments.

Compact High-Flow Mufflers

A small hex size makes these high-flow mufflers a great fit for cramped spaces.

High-Flow Mufflers

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.

Easy-to-Clean Mufflers

These mufflers can be cleaned for an extended service life.

Clog-Resistant Mufflers

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

Oil-Mist-Eliminating Mufflers

In addition to a filter, these mufflers have a wool felt disc to trap oil mist.

Inline Mufflers

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

End-Exhaust Mufflers

These mufflers exhaust through narrow holes on one end to provide a concentrated blast of air. Use them to eject items from your conveyor and direct exhaust away from delicate applications.

Flow-Control Mufflers

Adjust the flow by turning the screw. Use these mufflers with air-powered tools and cylinders to reduce noise and filter exhaust fumes.

Oil-Mist-Recycling Mufflers

Also known as reclassifiers, these mufflers have a clear reservoir with a drain plug to remove and store oil mist for reuse.

High-Noise-Reducing Mufflers

Install these mufflers in air-powered drills and other loud equipment. They filter exhaust fumes and reduce noise by 30 dB, a reduction that's equivalent to putting in earplugs.

Inline High-Noise-Reducing Mufflers

With a threaded connection on both ends, these mufflers can be installed anywhere in your line. They reduce noise by up to 45 dB.

Flame-Resistant High-Noise-Reducing Mufflers

Suitable for use with welding equipment, these mufflers are made of flame-resistant materials. They reduce noise by 35 dB.

Clog-Indicating High-Noise-Reducing Mufflers

Don’t let an unexpected clog interrupt your work. These mufflers have a filter that slides up slowly as it clogs to indicate when the muffler should be replaced. They reduce noise by 30-35 dBA

Exhaust Filters/Mufflers for Dry High-Vacuum Pumps

Purify exhaust fumes while silencing the noise from your oil-free high-vacuum pumps.

Ceiling and Wall Lights

Lenses for Ceiling Lights

Lenses disperse light to reduce glare, while protecting bulbs from damage.

Recessed Ceiling Lights

Also known as troffers, these lights fit most standard drop-ceiling grids.

Plug-In Ceiling Lights

No need for wiring—these lights plug-in with a two-prong plug. Also known as shop lights.

Wraparound-Lens Ceiling Lights

A wraparound lens disperses light from the sides as well as the bottom to produce ambient lighting.

Linear Bay Lights

With a lower profile than other bay lights, linear bay lights mount closer to ceilings, providing more room for racks or shelving.

Wraparound-Lens Wet-Location Ceiling Lights

A wraparound lens disperses light from the sides as well as the bottom to produce ambient lighting.

Light Filters

Polarized Light Filters

Reduce the glare from reflective surfaces.

Ultraviolet Light Filters

Block the transmission of ultraviolet light.

Colored Light Filters

Change the color of a room; filters allow only the same color lightwave to pass through.

Light-Absorbing Black-Out Paper

Block out stray and unwanted light.

Security and Landscape Lights

Dusk-to-Dawn Wall Lights

Mount these lights near entry doors, loading areas, and driveways to cast an even glow of light.

Security Lights

Also known as wall packs, these lights mount to exterior walls and ceilings.

Flow and Level Monitoring and Control

Air-Powered Aerators

Connect to a compressed air line.

Electric Aerators

A rubber air diffuser provides uniform bubble distribution.

Easy-Maintenance Weld-On Aerating Vibrators

When access to the inside of your tank is difficult, these vibrators can be installed and removed from outside of the bin for easier cleaning than bolt-on aerating vibrators.

Bolt-On Aerating Vibrators

Install from inside your tank and secure with the included mounting bolt.

Light Bulbs

Bayonet Base Exit Sign Light Bulbs

Replace bayonet base incandescent bulbs in exit signs with longer-lasting, energy-efficient LEDs.

Screw-In Base Exit Sign Light Bulbs

Replace screw-in incandescent bulbs in exit signs with longer-lasting, energy-efficient LEDs.

Sealed Holders and Lens
Caps for Miniature Light Bulbs

A sealing gasket keeps out oil and other contaminants.

Holders and Lens Caps for Miniature Light Bulbs

Install miniature light bulbs into control panels, machines, and other devices using bulb holders.

Colored Light Bulb Filters

These filters fit over standard household light bulbs with a bulb diameter up to 2 5/8".

Miniature Colored Light Bulb Filters

These filters fit over miniature light bulbs with a bulb diameter up to 7/16".

TIG Torches and Components

TIG Torch Gas Diffusers

Smooth the flow of shielding gas coming out of your TIG torch nozzle, so you have more control and less waste.

TIG Torch Accessory Kits

All the TIG torch accessories you need to get started in one kit, including collets, collet bodies, and nozzles.

Air-Powered Portable Blowers

Use your compressed air source to power these blowers.