230-48 - 7958 Uni Filter "Clamp-On" Breathers - 1/2 inches Uni Filter Female Clamp-On Type Breathers used for venting crankcases and differentials. Available in 5/16, 3/8 and 1/2 size options. Uni's Breathers are made with a new washable urethane which needs no oil or special cleaners. Uni Breathers are washable and reusable. The 5/16 and 3/8 Uni Filter Clamp-On Breathers paired along with the PK-22 Air Filter (see Related Items) will allow you to eliminate the stock air box on your Honda Ruckus 50cc! *Not legal for sale or use on California pollution c ontrolled vehicles. Item Numbers: UP-101, UP-102 & UP-103 Available in 5/16", 3/8" and 1/2" Outer Diameter: 1.5 inches Length: 1.5 inches No Oil Required Washable & Reusable Made in U.S.A.