ST280M250- 2pc- 28 in 250LB/1112N Gas Struts, Murphy Bed Piston 250lb, Heavy Duty Bed Cover Shocks Lift Support Spring for Tonneau Cover Truck Bed Cover Floor Hatch Basement Trap Door, 2Pcs

7661: New ST280M250- 2pc- 28 in 250LB/1112N Gas Struts, Murphy Bed Piston 250lb, Heavy Duty Bed Cover Shocks Lift Support Spring for Tonneau Cover Truck Bed Cover Floor Hatch Basement Trap Door, 2Pcs

Size Info — Extended Length (Center-to-Center): 28.00″ (711 mm); Compressed Length (Center-to-Center): 16.2″ (411 mm); Force 250 Lbs (1113 N) Per Strut, 2 Struts included in Per Set; Package content: 2× Shocks, 1× Installation Guide are included in each set

Interchange number: ST280M250,100-250,10478,12162,3100250,3100-250,8195619,AC10250,AC10250 2383,AVM 100-250,C1621770A,C16-21770A,GS3100250,SE1000250ME,SE1000-250ME,SPD3100250,SPD-3100-250

Wide Application — The gas struts can be used as the replacement parts of the Tonneau Cover Truck Bed Cover Snowmobile Travel Trailer and also can be used on Celler Door Floor Hatch Trap Door and DIY Builds

Warm Tips — Most suitable support weight is between 200 pounds and 275 pounds. Super Heavy, perfect for snowmobile trailer cover and heavy lids; Not used on the light lid or window!

Note: DO NOT compress them by hands before installing, the struts could only be compressed after installing successfully

About installation & support – once you need any installation guide