Has anyone used these instead of the standard 77 victualic couplings? seems like a nice feature that the pipes butt up to the rubber gasket, but maybe a concern if the gasket failed? was picking some 77 couplings up today and was asked why we aren't using the 177 instead. they install easier from the videos I've watched. the coupling stays together and you just slide the pipe in and tighten. I think they are the same price or cheaper than the 77...
