Optional ramps allows easy loading/unloading. Small Footprint maximizes storage space. No more hard to open swing out or gull wing doors. These units feature easy roll-up doors that allow for both top and side loading drums. Unique design lets you leave drum pumps in place during storage. 4-Drum model has 2 roll up doors, and the 2-drum model has one roll up door and solid back making it ideal for placing next to building or in limited storage areas. Doors are lockable for added security. Hardcovers are sold with Poly-Spillpallets providing both protection and containment for your drums. Weatherproof design is ideal for outdoor use. With pallets units meet EPA 40 264.175 regulations. 100% Polyethylene construction chemical, rust and corrosion resistant. Optional ramp attachment is available for ease in loading and unloading your 55 gal. drums. Units are fully forkliftable. FOB Shipping Point.