The Ditch Doctor® Excavator Attachment is available in two sizes with either a wet scroll case or dry scroll case. The Ditch Doctor® DD15 is for excavator sizes of between 4-12 tons (8818-26000 lb) with a hydraulic flow rate of between 12-45 GPM (46-170 LPM). Ditch Doctor® DD22 is for excavator sizes of between 13-25 tons (29000-55000 lb) with a hydraulic flow rate of between 24-75 GPM (91-284 LPM). Capable of creating a one stage or Two-Stage ditch in various soil conditions and in up to 3 feet (90cm) of water it is a unique and versatile attachment. The variable speed control allows for the even, self levelling distribution of spoil. The Ditch Doctor® method of ditching is a faster and more cost effective alternative to the conventional bucket and excavator, and kinder to the environment.