Steepster-David's Tea

www.davidstea.com or any of their US locations if you are near one. I believe Adagio has a very similar steeper, maybe called the ingenuitea?

They are generally called gravity steepers and if you aren’t picky about the brand, there are a lot places to get them. I think most of them function the same, but have different shapes.

http://www.steepcityteas.com/products/gravity-infuser
http://www.teavana.com/tea-products/tea-makers-infusers/p/teavana-perfect-teamaker
http://www.bedbathandbeyond.com/1/1/78019-zevro-simpliss-a-tea-gravity-drip-tea-infuser-cup.html
http://www.adagio.com/teaware/ingenuiTEA_teapot.html
http://www.mightyleaf.com/product/ingeni-loose-tea-maker-16-oz/
http://www.coffeewiz.com/Gravity-Loose-Leaf-Tea-Infuser-Teapot-18-oz/

Thanks for those links Dustin!