I have a gen 1 Cold Plunge and have been through 3 pumps under warranty and was looking at a 4th. Plunge has different priorities these days besides warranty service on old sales, and so I went to Joe and easily retrofitted to a Danner 950 instead of messing with the DC options. I purchased the pump and the fittings for the chiller and the Danner - all easily available on the site. All I did was install the fittings, cut and glued into the original plumbing to make the Danner compatible, filled the tub, plugged the Danner into a GFCI outlet and I’m good to go