For intermittent use pumping model glow fuel, water and in commercial/ industrial applications. This high-quality pump is self-priming and very versatile. It can pump in forward or reverse direction hook the pump to a power panel switch or use a DPDT (double pole-double throw) switch. The lapped brass gears ensure the durability of the pump. For optimal performance, mount the pump vertically (as shown in the picture). This ensures that the gears remain moist. Includes: metal fastening bracket with mounting bolts and hardware pack with electrical connectors and 2xbrass reducing nipples. 24 V pump is supplied without the hardware pack.