UNI Air Filter & Service Kit - Honda CRF150 CRF230

UNI premium foam air filter and service kit combo for the Honda CRF150 and CRF230 models listed. The UNI dual-stage foam air filter delivers superior airflow and engine protection, while the Service Kit includes the proper cleaner and oil to keep the filter performing like new. Buying them together ensures you have everything needed for correct maintenance, extends filter life, and saves money compared to purchasing each item separately—making this the ideal package for dependable off-road and adventure riding.

Air Filter Features:

• Designed to fit the in the factory air box exactly like original filter.
• The best selling replacement air filter for competition motorcycles and ATVs.
• Unique two stage design allows for easy and complete cleaning.
• Dual layer of foam, can be serviced separately. 
• High flow UNI filter will improve performance and provide the best filtration and engine protection available
• "Flow Matched" filters need no rejetting.
• Thin ultra seal base is virtually impossible to tear and has a a built-in "grease groove"
• Used by factory Yamaha, Kawasaki and Suzuki off-road.
• Made in the USA

Service Kit Features:

• One 14.5 oz. aerosol can of filter cleaner and one 5.5 oz. aerosol can of filter oil
• Cleaner's powerful agents quickly strip away grease and dirt, yet won't damage air filters; spray on, let soak in and rinse off
• Filter oil traps dirt particles and will not affect airflow when properly applied
• Will work on foam, gauze and paper filters

UNI Part Number: NU-4137ST (Air Filter)

Replacement for Honda Part Number: 17213-KPS-900

Fits Honda: