One more item....JP'Corner for qty 250 H39 (direct fit) is 79.95 + ship and http://www.air-tites.com/ for qty 250 H39 is 90.00 + shipping.
Both prices come from their wholesale pages. One more fact if you order from Air Tite which has absolutely nothing to do with the manufacturer of Air Tites they DROP SHIP from JP Corner. Won't elaborate what that means. I Know this because I have ordered from both places and always look at where they were shipped from.