prc 320 psu replacement caps

[Jesset1996.5]

so my 1.7 and 2.2 uf caps are on the fritz and id like to replace them. i have looked online and there $20 which is a bit pricey for just one capacitor. could i just use electrolytic caps. if so what value. i cant seem to find the exact value so i have decided to ask on here since i know nothing about cap value yet.