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Continue to ChatJOUCOMATIC 43900256 - 20-25mm Bore, Mountings, Neck Nut, Series 435 Joucomatic Numatics Anti-Corrosive Cylinders https://www.valves-direct.com/product/joucomatic-43900256-20-25mm-bore-mountings-neck-nut-series-435-joucomatic-numatics-anti-corrosive-cylinders/