42-1/2" Extendable aluminum chute-16" base - 3 section: Chutes facilitate delivery of water to dump tank. By providing a square flange on the discharge side of the valve, ZICO offers several options for attaching auxillary chutes to discharge the water further from the tanker. Chutes may be permanently attached (fixed length or extendable), or quickly added or removed (slip-ons) as is required.