For extra heavy-duty service where extended periods of high-speed running dictate greater filter capacity and less restriction than standard strainers provide. Monel inside tie rod; naval bronze outside tie rods Clear Lucite sight glass O-ring seals for all joining surfaces Bronze wingnut spins off for easy access to filter basket Monel filter baskets for stronger-than-stainless steel corrosion resistance Filter Basket Specifications: 0.077" diameter holes, 96 holes/in and 45% open area