I tell ya fellas I have seen this so much lately it is more easier to find companies that still offer full lineups then those who went away from what they do. Obviously RP filters sell like hot cakes, they have put a ton of very successful effort into design and marketing, and now I wouldn't doubt they are on the chopping block. Only had one restock, likely a couple pallets that they never sold through most of their retailers, only summit and direct and maybe O'Reilley's. Not many of their filters are reading out of stock.