MS was a, short-lived, tubeset
Ah, that's the actual name of the tubing, cool. I just thought it was a descriptor of the tube shapes. Seller should've used capital letters!
Maybe he was just describing the shape of the tubes.
I suggested it could be MS because (apart from Air, which this clearly isn't) that's the only other non-round tubing I know of that isn't Max.
@Scilly.Suffolk started
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Ah, that's the actual name of the tubing, cool. I just thought it was a descriptor of the tube shapes. Seller should've used capital letters!