SKB 3RS-4U20-22B 4U 20-Inch Deep Static Shock Rack Transport Case

The SKB 3RS-4U20-22B delivers secure transport for sensitive rack-mounted gear with military-grade protection and weather resistance. Its 20-inch rack depth, eight elastomeric shock isolators, and reinforced rotomolded shell make it a leading solution for audio, video, IT, and broadcast professionals needing maximum durability for high-value equipment. Front and rear lids, pressure relief for air transport, four spring-loaded handles, and stackable lugs ensure convenience, safety, and compatibility for field or mobile use. Fully compliant with rigorously tested MIL-STD 810H standards and EIA-310 rack dimensions.

Key Features

• Shock Absorption: Eight elastomeric isolators for 40-150 lbs payload (extendable to 160-300 lbs by SKB factory upgrade)
• Weather Resistance: Gasket-sealed lids, watertight, dustproof, heat and chemical resistant
• Rack Depth: 20 inches (rail-to-rail), 19 inches (standard rack width)
• Stackable: Integrated ribs/lugs for secure stacking with SKB or competitive racks
• Recessed Hardware: Black powder-coated stainless steel latches & hardware
• Handles: Four spring-loaded comfort-grip lift handles
• Pressure Relief: Automatic pressure relief valve
• Lid Hangers & Straps: Built-in lid hangers and included case coupling straps
• Compliance: Conforms to MIL-STD 810H, ANSI/EIA-310-C
• No Wheels: Wheels not included (optional caster platform available separately)

Specifications

• Model: 3RS-4U20-22B
• Rack Units: 4U
• Rack Width: 19 inches (ANSI/EIA-310-C)
• Rack Depth (rail-to-rail): 20 inches
• Front Rail to Back Lid: 24.875 inches
• Rear Rail to Front Lid: 24.75 inches
• Exterior Length: 31.625 inches
• Exterior Width: 24 inches
• Exterior Height: 13.375 inches
• Product Weight: 36.69 lbs
• Shipping Weight: 40.36 lbs
• Lid Depth (front and rear): 2 inches each
• Temperature Range: -40°F to 180°F
• Payload Range: 40–150 lbs (upgradeable to 160–300 lbs by SKB)
• Material: LMDP polyethylene shell, aluminum interior, 11 gauge carbon steel rack rails
• Handles: 4 spring-loaded
• Operating Temperature Range: -40°F to 180°F
• Color: Black (standard)
• Warranty: Lifetime, original owner

Package Contents

• SKB 3RS-4U20-22B Static Shock Rack Case
• Set of #10-32 and 6mm cage nuts
• Case coupling straps
• Removable front and rear lids with lid hangers
• Automatic pressure relief valve (pre-installed)
• User documentation and warranty info