Further efforts from Dave Green and Josh Kalinsky completed the rout for a resurgent Redbridge at Silver Jubilee Park.
Fortune had made a good fist of things in the first half, with the returning Ben Isaacs hauling them level.
But RJC went into overdrive in the second half, with Hahn and Rubin filling their boots.
FORTUNE: Philip Small, Conor Brand, Lee Hyams, Robert Jay, Jason Lindsay, Adam Speck, Brett Stead, Gabriel Stone, Daniel Vandermolen, Ben Isaacs. Subs: Gideon Wetrin, Simon Linden
REDBRIDGE: Ben Rosenthal, Alex Aviram, Martin Sales, Seth Walmer, Jamie Bernstein, Lee Cutler, David Green, MItch Hahn, Harrison Midda, Jason Patmore. Subs: Josh Kalinsky, Ben Oldstein, Matt Zartz
SCORERS: Hahn 4, A. Rubin 3, Green, Kalinsky