Breather Vent Caps | McMaster-Carr

	Pipe Size Pipe Size

	Thread Type Thread Type

	Connection Style Connection Style


Threaded	Barbed

Slip On

	Body Material Body Material

	For Use With For Use With

	Gender Gender


Male	Female

	Fitting Material Fitting Material

	System of Measurement System of Measurement

Inch

Metric

	Removes Particle Size Down To Removes Particle Size Down To

	Filter Material Filter Material

	Height Height

	Thread Size Thread Size

	Diameter Diameter

	Maximum Flow Rate Maximum Flow Rate

	Maximum Temperature Maximum Temperature

	Screen Material Screen Material

	Maximum Pressure Maximum Pressure

	Environment Environment

High-
Pressure
Washdown

Oily

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Cap Material Cap Material

	Drive Style Drive Style

External Hex

Hex

Slotted

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

REACH Compliant

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162 Products

Breather Vents

Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks.

Corrosion-Resistant Breather Vents

These breather vents withstand corrosion in damp environments.

Weather-Resistant Breather Vents

Shield outdoor pipe and tank openings from the environment. Also known as vent caps, these breather vents have screens to allow air flow while blocking debris.

Breather Vents with Cap

Add a filling port to your hydraulic tank while protecting against excess pressure and vacuum.

Lockable Breather Vents with Cap

Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering.

Washdown Weather-Resistant Breather Vents

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

Self-Draining Breather Vents

Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain.

Moisture-Eliminating Breather Vents

Keep moisture, dirt, and debris from entering your oil reservoirs.

Vents for Enclosures

Hazardous Location Threaded Breather Vents

Safe for use around flammable and combustible gases, vapors, fibers, and dust, these vents allow air to flow through enclosures to maintain consistent pressure and reduce moisture buildup as temperatures change. They also stand up to washdowns.

Submersible Threaded Breather Vents

Use these vents to maintain consistent pressure as temperatures fluctuate by allowing air to flow through sealed enclosures.

Snap-In Breather Vents

These vents have louvers with foam filters to keep out dust and falling liquids.

Submersible Snap-In Breather Vents

No threaded hole or tools needed—snap these vents into enclosures with a maximum 1/8” panel thickness to let airflow in and keep water out even when submerged.

Corrosion-Resistant Washdown
Threaded Breather Vents

Rated NEMA 4X, these vents provide protection from washdowns, corrosion, and power jets of water.

Wet Location Breather Vents

These vents maintain air pressure inside enclosures that may be exposed to indoor and outdoor temperature changes while keeping dust and water out.

Hazardous Location Drain Vents

Safe for use around hazardous gasses and dust, these vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures.

Breather Vents

Breather Vents

Corrosion-Resistant Breather Vents

Weather-Resistant Breather Vents

Breather Vents with Cap

Lockable Breather Vents with Cap

Washdown Weather-Resistant Breather Vents

Self-Draining Breather Vents

Moisture-Eliminating Breather Vents

Vents for Enclosures

Hazardous Location Threaded Breather Vents

Submersible Threaded Breather Vents

Snap-In Breather Vents

Submersible Snap-In Breather Vents

Corrosion-Resistant WashdownThreaded Breather Vents

Wet Location Breather Vents

Hazardous Location Drain Vents

Corrosion-Resistant Washdown
Threaded Breather Vents