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Snapvent - Model A-2-100

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Part# 05-01178
MFR Model# A-2-100


Adustable plastic ventilators for use as fresh air intakes or air exhausts. Easily installed in plastic windshield or metal cowling.

Model A-2-100: Mounts in a 2” diameter opening. Can be turned to provide any degree of ventilation. The “Off” position is with the opening downward.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


arrived fast and installed effortlessly!

Dave L Verified Purchase


August 24, 2021

Works as advertised

Elaine P Verified Purchase


July 21, 2021

I busted one of my vents when the door snapped up in the prop blast and it cracked against the underside of the wing. These replacements arrived very quickly and snapped right in place. They provide a lot of air in the cabin for such a simple device.

Barry H
August 22, 2019

Great value for the money, easy to install and work well

Doug T
July 26, 2018

very satisfied with product. good quality. works well . quite impressed. thank you very much

June 22, 2018

Easy to install provides lots of air

Larry T
August 28, 2017

Nice vents work good

Bill B
September 17, 2019

Indeed, they are 2,5 inches in diameter, not 2 as advertised. For those who are replacing an old 2 vent, its worthless.

February 8, 2022

2.5 in in diameter, not 2 inches, basically useless and not worth sending back for such a small refund. Rip-off

July 3, 2020


Please note, Pilotshop's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Pilotshop assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Snapvent PN 05-01178, it says Quantity 1. Does that mean 1 pair or just 1?

These snapvents are priced and sold as a pair.

Q: Is this Snapvent flush with the exterior when closed?

Per the vendor they don't actually close. You rotate the opening down and they stop scooping in air. So they are not flush and they are not able to be closed.

Q: The listing says these are 2 inches in diameter, however, 2 reviews say they are 2.5 inches. Can you measure and confirm what size hole they fit in? Thank you

You would drill a 2" hole in the window to install, but the vent itself is slightly larger. You squeeze the vent to install it into the hole.