The UT Series have vortex impellers and large pump casings, for pumping sewage and waste containing fibrous material, submerged debris and large solids. Construction is in cast iron and they are fitted with high-performance motors. Available as manual or with a pendant float switch, for automatic operation (230v only). An auto-coupling set is available as an optional extra to allow the fitting of guide rails on all models (see here). They are not recommended for ponds or water features.