The Sealey TP129 Oil Drum Level Indicator provides a simple and economical solution for monitoring fluid levels in standard 205-litre drums. This drum-mounted gauge features a 3/4" BSP threaded connection that screws directly into the smaller bung hole on 205L drums, leaving the larger 2" BSP opening available for pump installation. The indicator face displays clear markings from 0-210 litres, allowing quick visual assessment of remaining fluid quantities. Its water-filled polyethylene float design ensures compatibility with a wide range of workshop fluids including diesel, oil, antifreeze, windscreen fluid, detergents and water. Ideal for workshops, garages and industrial facilities that dispense fluids from bulk drums, this level indicator helps prevent unexpected run-outs and enables better stock management. Note that the TP129 is designed for indication purposes only rather than precise measurement. Features and Benefits:3/4" BSP thread fits standard drum bung whilst leaving pum