SAE-64512 4.5" Bore Prince FORTRESS Welded Cylinder SKU SAE-64512 $576.24 In stock Quantity: 1 Add to Bag Product Details 3000 PSI. Hard-chromed piston rods, internally threaded gland, heavy-duty seals, heavy crosstube end fittings with grease zerks, o-ring ports. Save this product for later Favorite