The under-$200 end of this category is the one most people actually start in, and it is also the one where the usual spec advice is backwards. With a chiller, capacity is a refrigeration load you pay for once. With ice, capacity is a bill you pay every single session. Nothing in this bracket is refrigerated, so the largest tub here is the most expensive one to own even though it is nearly the cheapest to buy. That inversion is the whole ranking.
The criteria, in order: published capacity, read as a running cost rather than a comfort figure; whether the listing claims insulation, because insulation is what makes your ice last; posture and construction, because sitting upright in a 35-inch barrel and lying back in a 59-inch frame are different sessions; and then price, read live. Across these four tubs, fourpublish a capacity — 88 to 300 gallons — and two publish a footprint.
The second finding is the upgrade path, and it is closed. Not one of these listings states a chiller port, valve or connection. The tubs that do state one sit above this line. So if a compressor is in your future, buying here means buying a vessel you will later drape hoses over rather than plumb into — which works, but it is worth knowing before rather than after. Tubs with a chiller and tubs under $1,000 are the two pages where that decision actually gets made.
And the third is a number no listing in the category states: the weight. Water is about 8.34 lb per gallon, so the tubs on this page run from roughly 734 to 2,502 lb when full. On a slab that is irrelevant. On a wooden deck, a balcony or an upstairs bathroom it is the first question to answer, and we compute it on every card because nobody selling these does.
We have not tested any of these; we own none of them. Here is exactly what we do instead. Every specification below was read from the seller’s own Amazon listing on the date printed on each card.