K& N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K& N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K& N universal air filters are washable and reusable.
K& N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K& N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K& N universal air filters are washable and reusable.
There are no live offers for RB-0900 K&N High-Flow Original Universal Air Filter - 3"5 DEG FLG, 4-5/16"OD, 4"H right now. The all-time low we recorded was $28.99 on 21 Feb 2026. Set a price alert to hear when it's back in stock.
Prices last updated 20 Mar 2026.
RB-0900 K&N High-Flow Original Universal Air Filter - 3"5 DEG FLG, 4-5/16"OD, 4"H
K& N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K& N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K& N universal air filters are washable and reusable.
K& N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K& N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K& N universal air filters are washable and reusable.
Last updated at 20/03/2026 22:48:28
K&N Universal Clamp On Air Filter RB-0900
Delivery $8.81
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Air Filter Rb 0900
Free delivery between Mar 23 – 27
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
Delivery between Mar 26 – 27 $16.99
K AND N ENGINEERING 3 5 DEG FLG 4-1/2OD 4L RB-0900
Delivery between Sat - Mon $15.99
K&N 5 Degree Angled Flange 3.5in OD/2.5in Flange ID/6in Universal Rubber Filter (RB-0900) - K&N Filters
Delivery between Mar 27 – 31 $28.22
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 Air Filters RB-0900 -by throtl Performance
Delivery by Mar 27 $16.31
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
Delivery $15
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
Delivery between Mar 27 – 30 $12
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
Delivery between Mar 31 – Apr 1 $15
K&N Universal Clamp On Air Filter RB-0900
Delivery $8.81
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Air Filter Rb 0900
Free delivery between Mar 23 – 27
K&N Universal Rubber Filter 3 inch 5 Degree FLG 4 1/2 inch OD 4 inch Height
Delivery between Mar 26 – 27 $16.99
K AND N ENGINEERING 3 5 DEG FLG 4-1/2OD 4L RB-0900
Delivery between Sat - Mon $15.99
K&N 5 Degree Angled Flange 3.5in OD/2.5in Flange ID/6in Universal Rubber Filter (RB-0900) - K&N Filters
Delivery between Mar 27 – 31 $28.22
