As all pumps are made from rolled stainless steel, mechanical properties are far superior then cast material. Pore free, non-pitting and non-adhering smoother surface, so less friction losses, and less crevice corrosion. Super finish surface also ensure no ingress or emission of germs or impurities. Pumps are highly energy efficient and requires less NPSH to function without cavitation. Pumps are available with closed/semiopen impellers.