These tanks are designed to be direct replacements to fit into the FLASH with no modifications to the air frame. The fuselage tank carries 78 oz and the wing tank carries 39 oz.
The tanks come fully assembled and pressure tested with standard 1/8" Jet Tech O-ring style fuel and vent fittings installed but does not include a clunk. Clunks may be ordered separately on the "fuel fittings" page.