ASA AFT-S Aircraft Fuel Tester with Screwdriver � Compact, Durable Fuel Inspection Tool Make every preflight inspection safer and easier with the ASA AFT-S Aircraft Fuel Tester�a short, efficient solution for detecting fuel contamination. Designed for use with standard aircraft quick-drain valves, this transparent 4-inch cylinder allows you to visually check for water, sediment, or fuel discoloration before engine start. The unique snap-on probe ensures a secure fit, reduces spills, and prevents breakage�perfect for student pilots, instructors, and aircraft owners. Molded octane color-coding on the side provides quick visual reference for fuel grade identification. Built into the tester is a chrome-plated screwdriver blade with both Phillips and slotted heads, ideal for removing fuel caps or making light adjustments in the field. Lightweight, compact, and reliable, the AFT-S is a trusted addition to any pilot�s flight bag or maintenance toolkit. Key Features: 4" transparent fuel tester for quick visual inspection Snap-on probe fits all standard aircraft quick-drain valves Built-in screwdriver with Phillips and slotted heads Molded octane color codes for fuel grade reference Helps detect water, debris, and fuel contamination Compact and easy to carry in a flight bag Ideal for student pilots, CFIs, and aircraft owners Part Number: ASA-AFT-S Brand: ASA (Aviation Supplies & Academics)