50 counts
http://www.cheaphumidors.com/p_small..._HUM-25EL.html

http://www.cheaphumidors.com/p_small...-25-GLASS.html

100 count
http://www.cheaphumidors.com/p_mediu...HUM-75DRG.html

150 count
http://www.cheaphumidors.com/p_mediu...s_HUM-3DR.html