1. Aqua Master Power Head I)Aqua Master AM1688-H: Maximum Flow Rates:1000 L/H Minimum Pumping Height:2\'\'11 Ii)Aqua Master AM3288-H Maximum Flow Rates:1500 L/H Minimum Pumping Height:3\'\'8 Iii)Aqua Master AM6688-H Maximum Flow Rates:2000 L/H Minimum Pumping Height:4\'\'11 Iv)Features for Aqua Master AM3288-H & Aqua Master AM6688-H: A)Powerful, Low Energy Consumption, B)Completely submersible and dynamic, C)Epoxy Filled, Hermetically Sealed, D)No Oil Required, Silent, Durable, Safe and Highly Efficient, E)Perfect for Wet/Dry or Trickle Filter Systems, Mini Reef Systems, Fountains and Pond. 2. Aqua Master Internal Power Filter: I)IPF-268 & IPF 800: A)Maximum output:800 L/H B)Compact and practical C)Provide strong flow rate wit powerful filtration. D)Large surface filtration sponge for maximum efficiency on mechanical filtration. E) Idea for small aquariums and turtle tanks. Ii)IPH-8500 A)6m length power cord. B)Maximum rise up to 3.35m height. C)Powerful capacity up to 2800liter/Hour. D)Use with ceramic shaft, never abrade.