NDS 864G 5-Inch Pro Series Channel Drain, Grey Reviewhttp://tinyurl.com/jvrwwx9 NDS 864G 5-Inch Pro Series Channel Drain, Grey Unique interlocking designAllows each channel to securely lock to the next for a secure, tight fitA bottom outlet is built into each channel section and fits 3" and 4" S&D fittingsIncludes 1 meter (39-3/4") of channel drain and grateIncludes 1 end outlet and 1 end cap