This is the Traxxas Air Filter Housing for the 2.5 Revo. This attaches to the throat of the carburetor. FEATURES: Black plastic air filter housing with cover screen and and changeable element Rubber double angled neck for filter Zip tie for fastening YOU WILL RECEIVE: One screened filter One rubber double angled One rubber adapter One zip tie REQUIREMENTS: TRX 2.5 engine or any carburetor that has a 14mm or 13mm outer carb throat opening SPECIFICATIONS: diameter: 1.5 (39mm) height: 2.4 (60mm) Diameter of carb adapter: 0.53 (13.5mm) Length of zip tie: 7 (177.8mm) COMMENTS: For replacement filters use: TRAC5261 For replacement filter oil use: TRAC5263 7/10/04 mcw ir/jxs &