Viega 95400 MegaPress cap Smart Connect technology 304 stainless steel, 1''

The 95400 is a 1 inch MegaPress cap, so it presses onto 1 inch pipe to close off a run or cap a stub. It is a press-type connection, not threaded, so the pipe end needs to be cut square, deburred and clean before the jaw goes on.

It is 304 stainless steel, which matters if you are capping a line where you do not want a carbon steel fitting sitting in a damp mechanical room or buried in insulation. The stainless body also means no thread sealant or dope is involved, since the seal is made by the press ring and the sealing element.

Smart Connect is Viega's unpressed-connection feature: an unpressed fitting deliberately leaks during pressure test so the installer finds the miss before the ceiling closes up. On a cap that is worth having, because a capped stub at the end of a run is the easiest connection on the job to walk past.

A threaded cap needs the pipe end threaded, which means cutting oil, dies and a crew member at the machine. The 95400 presses straight onto prepared 1 inch pipe in seconds, which is why it wins on retrofit work and on overhead lines where you cannot turn pipe. Stay with a threaded cap where the line is already threaded or where your spec calls for a threaded joint at that point.

For 1 inch press connections, yes. It is a single-size, single-configuration part, model 95400, in 304 stainless, so there is nothing to specify beyond the size and no handing or variant to get wrong on a repeat order. Other pipe sizes need the matching MegaPress cap for that diameter.