The Dryer-Ell is a re-engineered dryer exhaust fitting that exhibits a 10-inch radius and a smooth interior. This provides a net gain of approximately 4.8 feet in allowable duct length when used as a replacement to the standard 4-inch ell currently used in the dryer venting trade. Based on accepted ASHRAE methodology for calculating friction loss in ducts and fittings, this ell removes the 5-foot reduction consequence founding all building codes.
