K&N RC-9720

Universal Air Filters > Universal Chrome Filter ; Oval Flange
List Price: $77.90
Your Price: USD $49.99

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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" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

[More Information on Universal Air Filters]
  • Designed to increase horsepower and acceleration
  • Hundreds of sizes and shapes for most applications
  • High air flow with excellent filtration
  • Clamp-on washable and reusable air filter
  • Malleable flanges
  • One year limited warranty

Available Information

Product Specifications

Air Filter Large End Diameter5.313 in (135 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter5.313 in (135 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.49 oz (14 ml)
Flange Inside Length3 in (76 mm)
Flange Inside Width2.313 in (59 mm)
Flange Length0.625 in (16 mm)
Flange TypeCentered
Height3.063 in (78 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height9.25 in (235 mm)
Product Box Length5.63 in (143 mm)
Product Box Width4.63 in (117 mm)
Product StyleUnique Universal Air Filter
Top Material/FinishChrome
Top Outside Diameter3.438 in (87 mm)
Top StyleMetal
Weight1 lb (0.5 kg)

Customer Feedback

Be the first to review part RC-9720
Not the first time that I use your products ( Volvo 460 & Citroen BX with carburators / K&N - 56-1651,Renault Clio 1.2 / K&N RX extreme series ), and now this one in Fiat 500L with 1.4 engine. All are great, I hope you'll make oil and fuel filters to for my Fiat. Sorry on my english, whish you all the best.

Mladen Tesic ( Teshech )
Serbia, Zrenjanin
I replaced the stock filter with K&N 33-2539 a month ago for my Citroen Xantia 3.0i V6 194 hp, myself.  Since then I have found the diffrence in a way that never happened before. It roars and hops. Also, acceleration at higher speed (140-180 kph) is fantastic, really. Worth investing for driving pleasure.  No other information has been collected yet.

Bangkok, Thailand
Congratulations on a fantastic product. I own a Citroen Xantia HDI 2ltr diesel, now semi retired, after 51 yrs on the spanners, also I tow a caravan 15ft. I am really pleased with my K&N filter, I fact I have just purchased a Daihatsu Sirion 1ltr petrol car ,so am going to put a filter in this one as well, as petrol in the Uk is £1/04 a ltr, so one has to get the most out of your petrol as possible.

Jim Edwards
United Kingdom