Convert your mag drive pond pump to an aerating, recirulating pump with Fractionating Impellers. Designed specifically for use in hydroponic applications, uses front-mount adjustable venturi inlet and a powerful ceramic/magnetic aerating impeller with an aerating tube with noise-suppressing muffler. 

*Attention* these work together as a unit so, You Must Purchase BOTH, Venturi Assembly AND Impeller Assembly! 

Venturi Assembly: 

• SUP16505: Venturi assembly with tubing and muffler for Mag drive pumps 250,350, 500 & 700
• SUP16705: Venturi assembly with tubing and muffler for Mag drive pumps 950,1200, & 1800

Fractionating Impeller Assembly:

• SUP16555 - for Mag drive pumps 250 
• SUP16575-  for Mag drive pumps 350/500 
• SUP16585 - Fractionating Impeller Assembly 700 
• SUP16745 - Fractionating Impeller Assembly Model 950 
• SUP16755 -Fractionating Impeller Assembly Model 1200
• SUP16775 - Fractionating Impeller Assembly Model 1800