1. More Oxygen
2.Different Impeller with stackable
3. High Effiency
1. Arcuate Bevel-gear instead of worm gear is adopted, with high efficiency and saving over 20% electric energy than tranditional models
2. Arcuate bevel-gear is made of chromium-manganese-titanium with carbonitrding on the surface. Long life span and high rigidity are available.
3. Mechanical seal is available to against oil leak pollution
4. Protector inside is available to avoid motor bearing burnt accidentally
5 Pe float, nylon impeller, stackable.