Nipple fitting - 2 piece for install on anything?

[IPT]

Does anyone know where I can find (or even what it would be called) a drain or nipple fitting that I can mount to a container? I thought I saw one on BRS once. It was 2 pieces threaded with a gasket. So basically you could drill a hole in a container or the cover of any container and insert this thing and have a nipple to insert a dosing line or airline.

I'd like to make brine shrimp hatchery out of an old container (and also make my own dosing containers) using a bottle and drilling and inserting this in the cap. For the brine shrimp I can hatch then just have this at the bottom so after the shells float up I can just drain the water with the shrimp from below the floating eggs.

 

[KrisReef]

Sounds like a 1/4” John Guest bulkhead?
Edit
Or maybe
https://reefgoods.com/products/1-4-...MIn8ud0ZeAlgMVNS1ECB04PgmoEAQYCyABEgIva_D_BwE

 

[IPT]

Sounds like a 1/4” John Guest bulkhead?
Edit
Or maybe
https://reefgoods.com/products/1-4-...MIn8ud0ZeAlgMVNS1ECB04PgmoEAQYCyABEgIva_D_BwE

Thanks. Maybe that was it. I thought it was smaller but I might just not be remembering it correctly.

 

[IPT]

I found these for $8 on Amazon (4pc brine shrimp cap). These will probably work for both but I might be limited on what bottle I choose.

 

[mmorrison55]

I think this is what you mean? It goes with the bulkhead fitting that Kris reef mentions. You just size it accordingly

https://www.amazon.com/John-Guest-A...ea9e58f0913cf7a123&qid=1785706487&sr=8-3&th=1

 

[mmorrison55]

Or this one… it’s a cheaper option

https://www.amazon.com/dp/B0DKCP8RQW?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1