<https://www.magisterhyd.com/product/4inch-bore-x-30inch-stroke-clevis-hydraulic-cylinder/#webpage>
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"4\" bore x 30\" stroke clevis hydraulic cylinder 3500 PSI. Heavy-duty hydraulics, 2-year hassle-free warranty, free ground Continental US shipping. Magister cylinders manufactured using steel piston and steel threaded gland with wear rings for long life. Welded steel clevis ends with screw-on clevis on the rod end, honed cold-drawn tubing, hard chrome plated rod and top quality five component piston seals allow Magister Hydraulics cylinders to work in extreme conditions. Excellent replacement for farming equipment and others."
<https://www.magisterhyd.com/product/4inch-bore-x-30inch-stroke-clevis-hydraulic-cylinder/>