Nautilus Replacement Top Or Tank

Hi, Im asking about the "Upper Hardware" listed at Aspire.

Im reading peoples complaints that the top (Pressed on) could come off, then saying to buy "Hollow-out Stainless Steel + Glass Replacement Tank"

While I can see the glass is now protected using one of those, will it have a top and tube all in one, not pressed on like the original ?

Cant find much about them, searched Aspire USA but only find they are available

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