I couldn't find the stupid questions thread.
Is there a place to buy the drain parts for the shower/bath drain, and the laundry drain? I don't understand why they're made of plastic. I've looked at DCM/Kahma because that's what's closest to me. I don't know what to call them in Japanese either. ドレーンパーツ? ドレーンインサート? 金物?
by itsureisaday