Fully drainable tanks with integral sump for full drainage of contents, mounted on galvanised steel frames. All sump tanks require a steel mounting frame. We recommend the use of TTi approved galvanised frames. Standard colour is Safety Green. Optional colours include: translucent yellow, natural and blue, opaque heritage green, dark blue, yellow, orange or red. If tank is used for water storage, TTi recommend using opaque colours to prevent algae growth. Optional colours incur a 5% surcharge.