Our pumps installed in 1979 are still running without problems in a production plant in Slovenia. In the pictures you can find our old models GHR and CT. These pumps are so old that we do not know the date of zero-series production for these pump models. Our guess based on our knowledge and old catalogues is that zero-series production for GHR pumps was in year 1978, CT pumps are even older and we estimate that zero-series production started between years 1960 and 1965. You can also see the first page of GHR catalogue from year 1982. Even though that pumps are still running without problems, we think it is time for extreme makeover to achieve higher efficiency resulting in lower costs!