The Vent Cap II by Vico Industries is a snap to install but to make it easier we send out along guidelines to give you some pointers on doing it right the first time. Quickly sets up with no screws to penetrate your cover. Purchase more and conserve! each additional item is just 1.00 to ship! Compare large puchases to others using "free" shipping then buy from Northstar.
allows air in and out in order to reduce mildew and mold
works with 3/4" and 7/8" round aluminum poles
Installs easily without screws
Built in UV inhibitors means this will last for years
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