Sourcing Sanking Metric bulkhead conversion?

[SecondCityCorals]

I have a Waterbox and for the most part its great. Although it uses metric in the return line. Metric PVC in the US is....hard to source. Recently I have decided to build a hard line return with manifolds into my sump. I'm using 1 inch PVC. Waterbox sent me these parts to help convert my bulkhead from metric (above sump) to 1 inch (sump side). I am dumb and made a mistake gluing my PVC and need the two parts circled. I know they are Sanking/Flowcolour but I don't know where to purchase replacements. Waterbox has to disassemble plumbing kits from spare aquariums to send me parts which feels wasteful. And I hate having to bug them/waste parts out of a kit when I need spares.

Does anyone know the specific part numbers and where I can buy them?

The hole drilled in the tank is metric sized. I cannot redrill the tank. I am stuck converting metric to 1 inch PVC.

 

[Saltyreef]

 

[dadnjesse]

BulkReef

Metric to Standard PVC Adapters

Easily adapts Metric PVC fittings commonly found on Reef Octopus and other Metric based products to US Standard PVC Pipe. The Metric label side is a spigot fitting and will insert into any female Metric slip fitting to accept standard PVC pipe.

www.bulkreefsupply.com