32 Gallon RV Holding Tank 30" x 21" x 13" EPI 4580/H1249 - 3” Outlet Hub

32 Gallon RV Holding Tank 30" x  21" x  13" w/3" Hub Outlet or 3" x 1-1/2" Hub Offset Reducer Outlet    Part # 4580/WT-3232/H1249 Choose a tank with 1-1/2" Hub Outlet for dirty water from washing & showers or a 3" Hub Outlet for black water. (Blank Tank w/no fittings as pictured, fittings can be added per quote) Wall thickness is 0.180" in black polyethylene THE SEALED HOLE ON TOP OF THE TANK IS FROM THE MANUFACTURING PROCESS. IT IS A VENTING HOLE USED DURING THE CREATION OF THE TANK.  IT HAS NO FUNCTIONAL USE FOR THE END-USER.