Complementary vents are my favorite kind on VentBox.
I had to share this one with people:
We invented venting:) Whoever came up with this idea for Ventbox must be a New Yorker....and I would love to make you New Yorker of the month. Kennedy@AskaNewYorker.com
Maybe I'll be New Yorker of the month, though I'm not sure my two years in The City and 513 area code qualify me as a REAL New Yorker yet. We'll see.