This was a replacement for a system I already had in our RV "Wolfe Air 6000w" which was delivered by the supplier broken and they refused to fix. This is the exact same product inside and out, with different branding and notably cheaper.
Direct plug and play replacement, but also a simple install for the average DIY van/RV person. Works great.
Few small connector pieces for the plumbing were missing from my packaging but nothing that wasn't easily sourced from a local hardware store for a few bucks.