ATLs Unique See-Thru Vent Valve Automatically Closes To Prevent Fuel Loss During Racing & Refueling. Easily Tell When Cell Is Completely Full With Fuel! Fits Any Vent Hose Up To 1-1/2 i.d. - For Use With Gas, E85, & Diesel. ATL Refueling Equipment is used by professional racing teams everywhere and sets the standard for safety and performance. ATL Racing Fuel Cells offers a wide variety of Refueling Equipment including ATL Redhead Dry Break Valves, ATL Male Dry Break Refueling Probes, ATL Female Dry Break Refueling Receptacles, ATL Dry Break Handles, ATL Dump Cans & Vent Bottles, ATL Drum Break Valves, ATL Dry Break Rebuild Kits, ATL Discriminator Vent Valves and more!