What size clamp do I need for a 525xl return line?

[mta_morrow]

Hello, my RSR 525XL is arriving in a few days. I will be using the stock return line on a barbed fitting off my return pump.

I want to order plastic clamps for it but do not know what size to get. I think it’s one inch.

Can someone provide the size please?

Thanks!

 

[mta_morrow]

bump

 

[mta_morrow]

Bump! Maybe some folks are home now!

 

[mta_morrow]

And another!