Economy Enpoco Pak

Marathon Roofing Products offers the Economy Enpoco Pak, the assembled kit of the ULRD Roof Drain with all the components for easy installation. Available in 2-inch, 3-inch and 4-inch sizes, the Economy Enpoco Pak provides the essential features of more expensive drains at an affordable price. This drain offers versatility and easy installation on new and existing roofs. It is adaptable to most generic materials of single ply and conventional built-up roofing for use with roof decks of steel, wood, precast concrete or gypsum. According to the company, the product features a newly designed injection-molded PVC body with stronger gussets and an overflow option; a molded polyethylene dome strainer; and ABS clamping collar (metal standard) with gravel stop.

http://www.roofingmagazine.com/redesigned-roof-drain-kit-is-easy-to-install/