I am trying to install a new kenmore dishwasher. I have two problems. First I don't know what the thread size of 90 deg. fitting that screwes into the unit is. Sesond I need a longer drain hose run than what is supplied with the unit. I have bought a 7/8 inside dia. hose that will plug into a garbage disposal. But I can't find any 7/8 inch fittings to hook it up to the dishwasher. Thanks.

diswaser part#