KNAACK Replacement Gas Spring for Model 89/90 (2 Pack)
Key Features & Benefits
Exact OEM Engineering: Designed directly by Knaack as an identical factory replacement part for STORAGEMASTER® Piano Box Models 89, 90, 91, and Field Station Model 119.
True Dual Strut Kit: Sold as a complete 2-pack to overhaul both the left and right lift supports simultaneously for balanced, non-binding motion.
Universal Cross-Compatibility: Features an industry-standard 17-inch extended profile that directly swaps into select commercial boxes by Husky, Gladiator, and Craftsman.
Antifreeze Hydraulic Fluid: Loaded with high-performance hydraulic oil to prevent fluid crystallization, sticking, or pressure drops during extreme winter weather deployment.
Quick Ball-Socket Install: Equipped with common 10mm (3/8") nylon ball-joint socket ends for tool-free, snap-on assembly using only a flathead screwdriver.
Standard shipping
Estimated delivery time: 7-10 days
