Double-wall tank provides 110% secondary containment to help you meet waste oil regs Indoors or out, polyethylene construction resists UV rays, rust, corrosion and most chemicals Filter captures debris in drain before it can enter tank Level monitoring gauge lets you determine tank's content level with a glance Lockable opening adds security and prevents cross-contamination Arrives assembled and ready to use Translucent safety yellow tank allows for easy visual inspection Features quick-release 2" coupling for safer, easier drain evacuation