timer for filter

ok, i've been looking for some kind of timer to put my carbon filter on, but i cant find any with the right settings. im looking for a timer that i can have the filter run for 5 min. intervals every 10 mins. anyone know where i can get such a thing?

thanks in advance

plantlightinghydroponics.com/cap-artdne-adjustable-recycle-timer-wdaynight-function-p-541.html

thx user. i cant believe im having trouble finding one of these. been to all the local harware stores and hydro shops and cant find em.

ps. love the avatar! (i'm so going to hell)