Tubing size?

I ordered the silicone tubing from GHL as seen in the pic.
It seems the tubing slides very easy of the Doser adapters.
Is this the correct size tubing?

Thanks for any help

Attachment 12831

Yes, this is the correct diameter (6x4 mm).

Quote:

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Originally Posted by MatthiasF

Yes, this is the correct diameter (6x4 mm).

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Thank you