5/16” ID airline Valve

[Protodad]

Hey all, it feels silly to ask this but I can’t seem to find what I need anywhere. I have some flexible airline tubing on my skimmer and need to install a valve to limit airflow through it. I can find plastic 3/16 and 1/2 barbed valves but no 5/16. I’d rather not use reducers if I can avoid it.

Does anyone have a link for one?

As a follow up, can you use Mur-Lok fittings for airlines? I imagine they leak a bit but might fit the application where a perfect seal isn’t critical.

 

[Reefer Reboot]

 

[Protodad]

Thanks. I saw that but was concerned about using anything with metal in it as I suspect it will corrode.
(In fact this says it has copper and not to use in water systems)

 

[Reefer Reboot]

Is it going to be submerged?

 

[Reefer Reboot]

Duotight Push-In Fitting - 8 mm (5/16 in.) Ball Valve | MoreBeer

Duotight fittings are high-quality push-in fittings that seal tight and offer superior sealing capacity due to the double O-ring sealing design.

www.morebeer.com