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Uni Usa

Honda crf50/xr50/crf70/xr70 Uni Air Filter Made In Usa Nu-4131st

Honda crf50/xr50/crf70/xr70 Uni Air Filter Made In Usa Nu-4131st

Regular price $23.66 USD
Regular price $29.58 USD Sale price $23.66 USD
Sale Sold out

Uni Dirt Bike Air Filters are unsurpassed in airflow, dirt stopping and overall performance.


  • Designed to fit in the factory air box exactly like original filter
  • The best selling replacement air filter for competition motorcycles
  • Unique two stage design allows for easy and complete cleaning
  • Thin Ultra Seal base is virtually impossible to tear
  • Re-usable, easy maintenance
  • Used by Factory Yamaha, Kawasaki and Suzuki
  • Made in USA!


2004-2015 Honda CRF50
2004-2015 Honda CRF70
1997-2003 Honda XR50R
1997-2003 Honda XR70R

 (Fits stock airbox only. See our ebay store for filters that attach directly to carburetor)

Made in USA


If you’re looking to return or exchange your order for whatever reason, we’re here to help! We offer free returns within 30 days of purchase. You can return your product for store credit, a different product, or a refund to the original payment method.

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Free same day shipping on all of our products. Order by 1pm eastern time Monday-Friday.