This Water Worker 44 Gal. Pressurized Well Tank helps you keep your water clean and safe. This tank is a direct-fit replacement for a majority of installed well tank bases and it's constructed of deep-drawn steel with a stainless steel waterway lining for long-term use. For easy up keep, it maintains its air charge for years because it's pre-charged. The steel shell supports the water weight and a polypropylene liner separates the water from the shell to prevent taste or odor in your water.