The trough series variation from HOSP with wall fixing brackets. The TOPAZ high-performance float valve also provides a high water refill capacity of 80 l/min* for the STW series, and covers almost all mains water pipeline pressures with its working range of 0.3-7 bar. Safeguarded swivel function and glass pearl shotblasted surface on the float valve cover, animal-friendly edges and roundings, material thicknesses of up to 2.5 mm high quality stainless steel and low-soiling design are important criteria for animal-friendly husbandry and drink provision, and are ideally implemented in the HOSP trough series. In addition, all of the items in the HOSP trough series are constructed in accordance with the specifications of DVGW and European standards to protect the local authority water pipeline networks.