EasyPro Eco-Series Waterfall Diffusers Pond Force you need a pump that

you need a pump that produces 1gpm (60gph) at 7' of head

Matala Hakko Self-Weighted Disc Diffusers are EPDM air diffuser assemblies that feature weighted bases that help keep the diffusers anchored to the bottom and right-side up

These pumps can be used as inline pumps or submersible pumps

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providing a place to conceal ugly equipment and plumbing

EasyPro Eco-Series Waterfall Diffusers Pond Force you need a pump thatEasyPro Eco Series Waterfall Diffusers help ensure that water flows evenly out of spillways and are ideal for use at the beginning of streams and in block walls, pools and formal fountains. The 3. 5" low profile makes them easy to conceal, while the consistent 14" depth ensures that all sizes will work together. Faster to install than other spillways on the market Durable vertical rib design creates a nearly indestructible diffuser Load bearing design