[KTL]

I think the factory/OEM collapsible tubes are better than the Weltmeister aluminum tubes. Reason being is the OEM two piece tubes are just that- two individual pieces. The Weltmeister tubes are two piece, with the ends being what I believe I recall pressed on ends which house the o-rings. Point being, the ends on the Weltmeister tubes are prone to leaking/weeping at these end joints. The factory two piece tubes are simply stamped steel w/out these additional leak points. Plus I think the factory tubes are easier to get replacement inner o-rings.