Amazon offers the
Yimby Dual Chamber Tumbling Composter in Black, model no. IM4000, for
$79.20 with
free shipping. (It shows "temporarily out of stock" but you can order at this price and it will ship when available.) That's tied with our mention from two weeks ago and the lowest total price we could find by $15. It features adjustable air vents and a 37-gallon capacity.