For sale Skimz protein skimmer for sale

I’m selling my Skimz SM 161 internal protein skimmer. It is meant for tanks up to 250 gallons (light bio load) and down to 120 gallons (heavy bio load). I recently took down my tank but had worked great for over a year up until then. I purchased it a couple years ago for $399.95 I believe. The only alteration I made was to enlarge one of the holes in the collection cup lid so I could fit a float switch in it for use with a co2 scrubber. Looking for $220 for it now. All parts and pieces are still there. Works perfectly. Collects tons of foam.