Korallin C-1502 calcium reactor. Great condition (slight yellow color to the acrylic tube just may need a good scrub). Eheim recirculation pump in excellent condition.
20LB carbon dioxide tank. Barely used.
M3 regulator, with metal needle valve and solenoid: Some cosmetic salt water damage. Functional parts are intact without issue.
$180 (the CO2 tank and Eheim are worth more than that aloine )