I am planning to buy a set of suntrek panels and manifolds used from a guy. It's a good deal and the way he had them setup they went into a valley on his roof so they are all cut to different lengths. So I was wondering does suntrek or another company make double closed ended manifolds for connecting two lengths of panel and also are suntrek and sunheater piping compatible? They look so similar it looks like it. Does anyone know of a local source for suntrek panels?
Basically I Have to cut them to be uniform because I can't stand inconsistencies like that. I also need a vacuum breaker valve, 3 way valve and other stuff.