Designed for the widely-used 275-gallon obround tank, this fuel tank containment sump offers a reliable solution to protect against hazardous and costly spills. Constructed from durable polyethylene, it won't rust or corrode, ensuring long-lasting performance. The sump holds one (1) 275-gallon obround tank, saving space while providing easy access to the tank and pump. Optional features include a drain for convenient maintenance, a BAZOOKA trickle filter (requiring support underneath), and a tarp to prevent rainwater intrusion. If you need a larger capacity, a 550-gallon version is also available. With its sturdy construction and practical design, this containment sump is an essential addition to your fuel storage setup, helping you maintain a safe and compliant environment. Please note that measurements and specifications should be verified before purchase.