Diffusers | McMaster-Carr

	Pipe Size Pipe Size

1/16

1/8

	Thread Type Thread Type

	Gender Gender

Male

Female

	Body Material Body Material

	For Use With For Use With

	For Duct Trade Size For Duct Trade Size

	For Reducing For Reducing

Noise

Particles

Oil Mist

	Fitting Material Fitting Material

	Maximum Pressure Maximum Pressure

	Mounting Location Mounting Location

	Material Material

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	System of Measurement System of Measurement

Inch

Metric

	Connection Style Connection Style

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Diffuser Shape Diffuser Shape

Square

Round

	Maximum Flow Rate Maximum Flow Rate

15,330 scfm @ 100 psi

39,420 scfm @ 100 psi

Not Rated

	Component Component

	Color Color

	White		Clear
	Silver		Red
	Blue		Green
	Amber		Yellow
	Other Colors		Black

	Drive Style Drive Style

External Hex

Slotted

	Power Source Power Source

Air

Electric

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523 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.

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.

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.

Corrosion-Resistant Mufflers

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

Clog-Resistant Mufflers

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

Easy-to-Clean Mufflers

These mufflers can be cleaned for an extended service life.

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.

Inline Mufflers

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

Oil-Mist-Eliminating Mufflers

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

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 30-35 dB, a reduction that's equivalent to putting in earplugs.

Flame-Resistant High-Noise-Reducing Mufflers

Suitable for use with welding equipment, these mufflers are made of flame-resistant materials. They reduce noise by 35-42 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 dB.

Exhaust Filters/Mufflers for Dry High-Vacuum Pumps

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

Lighting

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.

Polarized Light Filters

Reduce the glare from reflective surfaces.

Colored Light Filters

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

Ultraviolet Light Filters

Block the transmission of ultraviolet light.

Infrared Light Filters

These filters have a coating that reflects the infrared spectrum and reduces radiated heat.

Light-Absorbing Black-Out Paper

Block out stray and unwanted light.

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".

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.

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.

Diffusers, Registers, and Grilles

Ready-to-Connect Drop-Ceiling Diffusers

Drop-Ceiling Diffusers

Dampers for Drop-Ceiling Diffusers

Ready-to-Connect Moisture-ResistantDrop-Ceiling Diffusers

Moisture-Resistant Drop-Ceiling Diffusers

Snap-On Collars for Drop-Ceiling Diffusers

Ceiling Diffusers

Ready-to-Connect Ceiling Diffusers

Wall/Ceiling Registers

Air Diverters

Mufflers

Mufflers

Compact High-Flow Mufflers

High-Flow Mufflers

Corrosion-Resistant Mufflers

Clog-Resistant Mufflers

Easy-to-Clean Mufflers

Flow-Control Mufflers

Inline Mufflers

Oil-Mist-Eliminating Mufflers

Oil-Mist-Recycling Mufflers

High-Noise-Reducing Mufflers

Flame-Resistant High-Noise-Reducing Mufflers

Clog-Indicating High-Noise-Reducing Mufflers

Exhaust Filters/Mufflers for Dry High-Vacuum Pumps

Exhaust Filters/Mufflers for Dry High-Vacuum Pumps

Lighting

Lenses for Ceiling Lights

Recessed Ceiling Lights

Polarized Light Filters

Colored Light Filters

Ultraviolet Light Filters

Infrared Light Filters

Light-Absorbing Black-Out Paper

Colored Light Bulb Filters

Miniature Colored Light Bulb Filters

Flow and Level Monitoring and Control

Air-Powered Aerators

Electric Aerators

Easy-Maintenance Weld-On Aerating Vibrators

Bolt-On Aerating Vibrators

TIG Torches and Components

TIG Torch Gas Diffusers

TIG Torch Accessory Kits

Water-Cooled TIG Torches

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