Id be interested to learn about the reactor technology after you've had a chance to review it. I fashioned a DIY Dual C02 scrubber by using my old 3-stage RODI with new fittings and media tubes.
I bought the 5-gallon C02 media from med-vet - seemed to be the most economical and lasted longer for me than both the TLF and BRS media. It also has a much better color change contrast than both (for my eyes anyway)
I didn't know about this media. Any downsides from using it or is it pretty much better in every way?