Unused 500 GPM vertical 0.5-micron cartridge filter. Manufactured by Houston Design Products. Pall Model #VV012HF6S30AF1B-100927. 316L stainless steel construction. 30" diameter x 87" height. Rated 125 PSIG/FV @ 300°F. Top pressure-lock quick-opening closure, dished bottom head and skirt supports. Clean differential pressure 2 PSI, dirty differential pressure 15 PSI. 99" OAH x 22" ID. Estimated weight of 5,000 lbs. Serial #1609-3. National Board #857. Tag #18-FD-1803A. Built in 2023. Previously designated as Truck Rack #17 Raw Tallow Filter.