• Honed tubing • Heavy duty, high strength tie-rods • Induction hardened piston rods plated with RoyalPlate Plus (piston rods on 2” bore not hardened) ductile iron piston, butt, gland & clevis • Urethane u-cup & metal encased wiper 2 1/2” bore & larger models • Crown seal on piston • Standard color is gloss black.