Our old inflatable hot tube is looking a little worse for wear so it's time for an upgrade. I had flagged this listing last week as being the cheapest around (for this size/style) - and with the 20% off makes it a steal.
(Note - there are other models/sizes available - search using the original PREZZY post link for 'spa' to see other models).
This one is the largest one Bestway make. Includes heater, filter, mat, etc - everything you need except the chemicals. And water. And patience while it heats up. And a neverending source of electricity. But apart from that, it's complete.
We love our inflatable spa - wouldn't 'upgrade' to a rigid one even if we could afford it, prefer the ability to use it as a play pool for the kids and the fact it's relatively indestructible. Happy to answer any questions.
For chemicals - you can use bromine (standard, cheap, but smells like chlorine) or as we do, 'biguanide' based chemicals (non standard, not cheap, but no smell whatsoever). We get ours from Clark's rubber - ask for 'saniteezy' starter kit.
You really know your inflatables.