The Spill Containment Manhole is used to contain spillage during underground storage tank filling. The manhole is designed for easy slip on installation onto the fill riser and includes a flexible Buna-N seal and flange assembly to allow for frost heave or angular movement of the storage tank. The spill containment manhole also features a rust resistant epoxy coated steel body, a water shed style cast iron ring, a ductile iron cover with an exclusive twist lock design and carries the H-20 load rating. The Model 112 and Model 112P are ideal for retrofit application. The Model 112P includes a hand pump and Model 112V includes a drain valve. All models are available in 5, 10, 15 and 25 gallon capacities. The 15 and 25 gallon models also include two easy grip handles.