The DU-BRO Clunks are dependable, high-quality fuel pickup weights designed to keep fuel flowing smoothly to your engine throughout every phase of flight. Whether your airplane is climbing, diving, or performing aerobatics, the clunk inside your tank must stay submerged in fuel—and DU-BRO’s precision-made clunks do exactly that. These clunks are available in both Standard and Large sizes, giving you flexibility for different tank sizes and fuel demands. The Standard Clunk weighs 7.5 grams (0.26 oz.), making it ideal for most sport and scale aircraft. The Large Clunk weighs 13.6 grams (0.48 oz.) and is perfect for bigger engines, larger fuel tanks, or models that require more consistent fuel pickup in extreme maneuvers. Each clunk is nickel plated, which helps prevent corrosion caused by glow fuel or gasoline. This creates a long-lasting, durable component that performs reliably over time. DU-BRO also machines fuel line barbs directly into the clunk, helping secure your fuel tubing so it won’t slip off inside the tank—a critical feature for safe and dependable fuel delivery. DU-BRO clunks are great for: Glow and gas engines Pattern planes, sport models, scale aircraft Large tanks needing strong, consistent pickup Pilots who want trouble-free fueling performance Installation is simple: attach the clunk to your pickup line, insert it into the fuel tank, and enjoy reliable fuel flow on every flight. Proudly Made in the USA, DU-BRO Clunks offer strong construction, corrosion resistance, and dependable performance—making them a smart upgrade or replacement for any RC fuel system. WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
