Nitrous and Fuel Filters

NOS Logo

3-15550nosNOS has a complete line of Nitrous and Fuel Filters designed exclusively for the demands of your nitrous system. One of the most important components of any nitrous system, NOS filter fittings feature an aircraft type stainless steel mesh filter element to keep contaminants from attacking the solenoid and plugging the jets. The new NOS high pressure Billet Aluminum Filter (part number 3-15550nos) features a precision billet aluminum body and a cleanable stainless steel mesh filter element that has 10 times the filtering area of a standard filter. It is an excellent idea to check your nitrous filter periodically and clean if necessary. Available in a variety of sizes and angles for easy installation. All NOS nitrous systems include Nitrous and Fuel Filters.

3-15573nos 3-15572nos 23-15572nos

Part Number

Description Racer Price


 NOS -4 x -4, Inline Billet Aluminum N2O Filter



 NOS N2O Filter 1/8''NPT x -4AN



 NOS N2O Filter 1/8''NPT x -4AN, 90



 NOS Fuel Filter 1/8''NPT x -4AN



 NOS Fuel Filter 1/8''NPT x -4AN, 90



Earl's Logo

In-Line Fuel Filter

40-230106erlPaper is great for making notes, but as a filtering element it can't hold a candle to sintered bronze! Now, Earl's has an in-line 35 micron sintered bronze element fuel filter that can be easily disassembled for inspection and cleaning. Available with size 6 or 8 AN, or hose barb end fittings for use with Earl's high performance fuel line and fittings. Blue anodized finish makes this a hi-tech looking as well as practical addition to any engine. Sintered bronze filter elements also sold separately. 4 to 5 gpm flow.


Check Valves
(one-way or non-return valves)

40-251004erlThe surplus units were widely used in fuel systems for decades. However, the surplus synthetic rubber seals are not always compatible with current hydrocarbon fuels and/or additives. Earl's has redesigned the original surplus valves with modern elastomers which are not affected by most fuels and lubricants.


Part Number

Description Racer Price


 Earl's -4AN Flapper Check Valve



 Earl's -6AN Flapper Check Valve



 Earl's -8AN Flapper Check Valve



 Earl's 5/16'' - 3/8'' Barb Fuel Filter



 Earl's -6AN Fuel Filter



 Earl's -8AN Fuel Filter



 Earl's Fuel Filter Element Only