I’ll have to look into those oneshttps://www.etsy.com/listing/1249102099/6-pack-quail-chicken-feeder-ports?ref=share_v4_lx
I'm putting this link here because I'm going to try this for feed waste prevention. It's a set of 6 ports for $9 usd which I feel is fair. Saw them on a YouTube channel called Kayle's Quails. You cut appropriate sized holes in a six quart plastic box and glue them in. The link is for a seller on Etsy that the channel recommended.
That’s what I thoughtThat's a steal of a deal how could you not