Got a bank thats going to be getting some new condensers. Dont like to mis-match but someone had already threw in some Rheem series 90 A/H about 3/4 years ago. We do not deal with rheem to much and for that matter most of are splits are TXV controlled so I don't wanna make things worse. I have a coil m# rcoa-4882gg21 with the 82 underlined indicating piston used. Problem is I cant find any info on sizing of Rheem's pistons or the coil. Any help would be appreciated.