The MH pumps are designed for circulation in ponds and lakes, feeding waterfalls and creating water features. All models are lubricated and cooled by non-toxic oil and can deal easily with fish waste, vegetation, soft solids etc up to a size of 6mm. They can be fitted horizontally or vertically. A hose connector is supplied as standard, but the female BSP outlet enables a simple connection for fountain attachments, pipe fittings and gate valves. Optional extras include a choice of three fountain attachments, to suit the MH-150 and MH-250, and a telescopic nozzle extension pipe (extending from 278mm to 508mm), enable correct positioning above the water level. A gate valve is recommended for adjusting the flow to create the perfect water feature.