TetraPond Koi Growth Food, 4.85 lb.

The most versatile and complete solution for Aerated Koi Pond Bottom Drains! The Koi Toilet I Aerated 4" Bottom Drain features a 9" Flex Air Diffuser with built in Triple-check valve design prevents entry of liquid/solids into air feed piping for low maintenance operation and a 4" diameter pipe optimal for gravity fed systems. Excellent build quality, Built to last!

Flex Air Disc Diffusor with built in Triple-check valve design prevents entry of liquid/solids into air feed piping
Sweep bottom design to eliminate trapping debris.
Threaded center column for easy installation and maintenance.
Wide and thick flange for better liner grip.
Full 4" height over horizontal discharge pipe.
Flex Air Disc Diffusor with built in Triple-check valve design prevents entry of liquid/solids into air feed piping
Sweep bottom design to eliminate trapping debris.
Threaded center column for easy installation and maintenance.
Wide and thick flange for better liner grip.
Full 4" height over horizontal discharge pipe.

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Koi Toilet I Aerated Bottom Drain - 4 Inch;