Boat Dealers in: IL Dupo Marine Center 900 North Main St Dupo, IL, 62239 (tel) 6182865252 Send an e-mail to this dealer Visit Dupo Marine Center's website We have 2 boats listed on BoatBrowser.com. Waterwerks, Inc. 18660 S. Cicero Ave. CountryClubHill, IL, 60478 (tel) 708.798.9700 Send an e-mail to this dealer We have 9 boats listed on BoatBrowser.com. Cope Marine Inc 1725 W Highway 50 Ofallon, IL, 62269 (tel) 618-632-6353 Send an e-mail to this dealer Visit Cope Marine Inc's website We have 2 boats listed on BoatBrowser.com.