Today for four hours only, all of the vents will be on sale for 20% off. The deal is, if you purchase any of the vents during this 4 hour time you get an automatic 20% off everything in your cart. But, there will be a longer than normal wait period to receive your vents, due to the fact that I am having a second surgery on my neck January, 6th. Recovery time before I can get back in the shop will be 2 to 3 weeks. So, depending on the number of orders, it could be near the end of February before you receive your order. If you have been thinking about ordering, now is the time; once this sale is over, pricing goes back up 10% until midnight tonight and then back to the original price on the website.