Description
Comparison points and tradeoffs
When comparing Uni Filter UP-103 1/2′ Clamp-On Breather , Black with other Breather Filters options, use this source-backed detail as the primary discriminator: Exclusive Ziptie Loop for mounting to frame – no loose hoses.
Use this second fact to evaluate the tradeoff: Product identity: Uni Filter UP-103 1/2′ Clamp-On Breather , Black. A third point to compare across alternatives is: Uni filter ATV air filters keep out all the dirt, dust, and mud providing superior engine protection. The principle of how foam air filters work is simple, open cell polyurethane foam is wetted with specially developed filter oil. The sticky filter oil.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
Uni filter ATV air filters keep out all the dirt, dust, and mud providing superior engine protection. The principle of how foam air filters work is simple, open cell polyurethane foam is wetted with specially developed filter oil. The sticky filter oil.
Source product highlights
About this item
- Exclusive Ziptie Loop for mounting to frame – no loose hoses

Troy Barker –
Item worked for about 60 miles then the rubber connection broke into 1000 piece and the filter fell off. Item was used at prescribed.
Samuel Jacobs –
I used this filter for my transmission breather on a 2004 Honda crf230f. After more than 50 hours on the bike it still works great. Very happy thus far.
Adam Zelezny –
These are quality air filters. The rubber is strong, stretches well if you are trying to get it on something larger OD. As always, soapy water does the trick.
Al –
Good
Customer –
it was exactly as described and arrived in three days via regular delivery.
Dave –
It’s well built, but slightly twisted (even the product picture shows this). The color is a deep red and doesn’t have any leaks or places where unfiltered air might enter bypassing the filter element.
DoubleDownT –
Fit the crankcase breather port on my 85′ Honda CB650SC. Looks good , and good construction. No way to verify the filtration though by company reputation I am putting my trust in it for use on my motor.
Rene S. –
Exactly what I needed
Danielle –
Fits perfectly on my 1972 Volkswagen Baja bug and does not interfere with oil fill cap. Mounted on 1/2 inch breather tube.
Stephen Kemp –
Broke in half after 3 days of use.