If you still have your original blade assembly, here are the part numbers for the wiper refills. Remember when installing the spines, they should bow outwards. Acura parts are same as Honda so you can find them at Honda dealers.

Front driver – old:76622-SLA-004 new:76622-SLA-004 (600mm)
Front passenger – old:76632-S6M-003 new:76622-SF4-305 (500mm)
Rear – same as front passenger (500mm)