What to use for a rain cap?

[Firenutz]

I'm in the process of piping my Mt. Vernon. I'll be terminating the exhaust a couple feet above my roofline. Can I just use any 3" cap or does it have to be special pellet stove cap? I used the simpson duravent multifuel kit for my install but it only came with a cap for horizontal venting. I've seen 3" caps as cheap as $12 at local hardware stores that look like they would work but I'm unsure.

 

[HD41]

link is for Duravent showing pellet stove chimney parts, the part you need is on page 10.
(broken link removed to http://www.duravent.com/2a.php?page=ts.php) click on catalog

3" cap Part number 3080 for pellets, part number 33080 for corn

 

[Firenutz]

I'm in the process of piping my Mt. Vernon. I'll be terminating the exhaust a couple feet above my roofline. Can I just use any 3" cap or does it have to be special pellet stove cap? I used the simpson duravent multifuel kit for my install but it only came with a cap for horizontal venting. I've seen 3" caps as cheap as $12 at local hardware stores that look like they would work but I'm unsure.

1'd go for cheap ,ehhaust aint that hot,u dnt want rain so match simpsons specs & say hi to LISA

Who's LISA?