Product Description
Bottom Drains are a must have for proper koi pond Keeping. The most versatile and complete solution for Aerated Koi Pond Bottom Drains! The Koi Toilet I Aerated 4" Bottom Drain features a 9" Air Diffuser and a 4" diameter pipe optimal for gravity fed systems. Excellent build quality, Built to last!
Sweep bottom design to eliminate trapping debris.
Screws are fully encapsulated in large and strong screw pockets.
Threaded center column for easy installation and maintenance.
Wide and thick flange for better liner grip.
Full 4" height over horizontal discharge pipe.
Download Koi Toilet I 4" Aerated Bottom Drain Installation Instructions Here (PDF)
Free shipping. Usually ships same or next day. 
