Co2 washer ?

So I just got a co2 tank and I have a used regulator , on the reg there is only a little black washer left so I'm thinking I need to put a nylon washer in there so I don't have any leaks when I keg . I checked I line and its 15 cents but 8$ shipping .is there a size washer at lowes ?

 

I have tons of them, whats your address? I will send ya some...

 

Google up the closest welding supply or gas refill outfit near your workplace and scoot over during lunch...

Cheers!

 

Will do , the member above told me that at refill places they sometimes give you one . So when I get it filled tomarow ill ask thanks guys !!!

 

Get some extras. They grow legs when you aren't looking...

Cheers!

 

Thanks guys , got it filled and got a washer , got my kegs soaking right now to replace o rings tonight . Kegging hopefully Sunday .