3HP vortex air pump for fish pond description:
1. One Air Blower with one Carton or with wooden case
2. Within 7 days after get the advance payment
3.Famous Brand (OEM Allowed)
4.Certificates:CE,UL,RoHS,CC
5.German technology
6.Ex stock
7. Beautiful surface 
8. Easy installation 
9. Low noise level 
10. No vibration, and therefore complete dynamic stability 
11. Pulsation-free discharge 
12. Minimal maintenance 
13. Higher pressure ratio 
14. Cooler running bearings 
15. Longer grease life 
16. Simple maintenance 
17. 100% oil-free air 
18. Suitable for environmental protection 

Details:
NSK/SKF bearing  Side Channel vacuum pump 
Reliable and built-to-last, 100% oil free maintenance-free
Aluminium body Robust yet light-weight Side Channel Blower
For use worldwide (CE/GSG/RoHS/ISO/CCC approval)
50/60 Hz wide voltage range motors
compact size for building into machines
corrosion-proof aluminium  Side Channel Blower
contact free operation eliminating wear
feature noise-dampers as standard, for low noise levels
universal pipe connection at inlet and outlet
versatile use for pressure and vacuum