Cryorig is 160mm actually.
Deepcool is a nice mid-range choice. Some more common downdraft coolers from Noctua and Phanteks that get decent ratings.
http://www.newegg.com/Product/Product.aspx?Item=N82E16835856026&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker,%20LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=