4-in. Koi Toilet I Aerated Bottom Drain

A great versatile Aerated Bottom Drain Koi Toilet I for Koi ponds and hybrid ponds. This is the same bottom drain The Pond Digger Construction Team installs professionally in the field.

• Sweeping bottom design eliminates trapped debris
• Full 4″ height on the horizontal discharge pipe
• 1″ Air Dome supply connection in the bottom reducing back pressure on your air pump
• Screws are completely embedded in screw pockets
• Threaded center column for air dome for easy disassemble and maintenance.
• Thick, wide flange for optimal liner grip on the seal.
• Slanted Air Dome
• High Quality Air Diffuser
• Internal Check Valve
• Need we say more?