The Orea 185 Waved Filters is a great match for the Orea V4 Dripper.
It is a great replacement for the trusty (and somewhat rusty) Kalita Wave paper that the brewers were designed to use initially – with the same brew times but much cleaner, more transparent results. Orea uses a premium paper stock from Japan as the basis of the new wave-shaped paper with superior results at comparable prices.