Oso Monobolic Valve, part unsure of...

[topman870]

Hi Guys,

I was having some issues form my old valve and the plumber said it needs replacing, I purchased a new one online and had the plumber fit this for me, he was unsure of a part in the box and left it out.

Can anyone tell me what the circled part is used for and it it required?

Thanks!

 

[ShaunCorbs]

I would say blank for the balanced cold port

 

[topman870]

Ah that would make sense as it has a balances cold draw off so I can disregard this bit.

Thanks for your reply

 

[townfanjon]

Defo ... incredibly handy , fits inside a compression nut some brass ones available