Neck: 3/4 Inch (18mm) Height: 2.1 inches (53mm) Width: 2.0 inches (50mm) Includes Hose Clamp Universal fit Black The Raemco Racing Vent Crankcase Breather Filter is specifically engineered for high-performance cars and motorcycles, offering superior air filtration for crankcase venting. Designed with a durable metal cap and ultra strong pliable urethane base/flange, this filter provides unmatched strength and reliability and even under extreme racing conditions the flange will not get dry and brittle like most of our competitors rubber flanges. Available in inlet sizes of 12mm(1/2"), 18mm(3/4"), 25mm(1"), it ensures optimal airflow while preventing harmful contaminants from entering the crankcase. This high-performance breather filter minimizes oil contamination, reduces engine wear, and maximizes power output, making it a must-have for competitive racers seeking both reliability and peak engine performance. INCREASED POWER: Top of the line, 100% cotton air filter media with a galvanized steel wire finish is designed to increase horsepower and acceleration as well as improve overall engine performance EASY INSTALLATION: Built with simple clamp-on design made from Urethane to avoid drying and cracking. (hose clamp included). One of the easiest and most cost-effective performance upgrades for your vehicle. SAVES MONEY: Raemco's high-flow replacement air filters will save you money by avoiding disposable filters. ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A Raemco air filter will easily last as long as 10 disposable filters. WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants as small as 2.8 microns.