This is a DIRECT replacement for
SPD-GS / GSNI-2300-150 MORE Gas springs listed in our Store Fully extended= 20 inches ... Fully retracted = 12 inches (center to center of the ball socket) Diameter: rod = 8 mm / tube = 18mm 150 pound force at rest (full extension) 10MM metal ball joints on both rod and tube end You are buying (1ea) gas spring / shock / strut Manufactured by Columbia Strut (model CS2000-150) This unit and comes complete with threaded removable 10mm nylon ball sockets both on the rod and tube ends (if you are in need of mounting brackets see our selection listed in the store) The shipping, handling and insurance is a set cost of $12.00 (FedEx Lower 48 states USA ONLY) Note: for best results replace both struts (when 2 struts are used) ALWAYS install with rod down (your struts will last much longer here s the reason all struts contain a bit of oil / that is what causes the damping effect towards the end of the stroke , this oil also lubricates the piston, installing the rod down keeps the oil atop the piston!) Weather you are looking for a replacement, upgrade or thinking of adding a gas spring to anything you would like assisted power in opening - closing or to be held open hands this may be for you. Gas springs offer a unique alternative to conventional mechanical, coil spring or counterbalancing devices. The spring rate for a gas cylinder is far less than for any type of mechanical spring. The advantages of these springs involve the combination of a relatively flat force curve, versatility of controlled forces, extension speed, damping at the end of the stroke along with a very compact design. Each gas spring contains a specific amount of oil, which lubricates the seal, piston and piston rod, as well as acting as a damping medium. The oil within the cylinder, when it is compressed or extended, moves from one side of the piston head to the other, providing a damping effect. If you do not find the size, length or configuration you are in need of please e-mail us as we have over 100 combinations to choose from Thank-you for your interest Watch for MORE items from RV-Trader to come!