Replacement Tank Cap for Hoover Power Scrub SpinScrub 50 and similar

I borrowed my sister's Hoover carpet shampooer and noticed she had lost one of the caps to the water tank.  I found a similar replacement cap at www.thingiverse.com/thing:4546785 but it was for cap with only 3 prongs to secure it to the tank and I needed 4.  I removed all the prongs and then added 4.  I printed the gasket (no modifications needed) in TPU and the cap in PLA.  Fits better than the original :-)