SKU: 55213953511

SKB Cases 3RR-4U20-22B, 4U 20-inch Deep RR Series Shock Rack Case

Sale price$814.50 Regular price$905.00
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Description

SKB Cases 3RR-4U20-22B, 4U 20-inch Deep RR Series Shock Rack CaseThe SKB Cases 3RR 4U20 22B, 4U 20 inch Deep RR Series Shock Rack Case are available in 8 sizes: 3U, 4U, 5U, 6U, 7U, 9U, 11U and 14U. These Shock Racks are lightweight, shockproof, watertight, dustproof, heat and chemical resistant, perfect for protecting and transporting your sensitive electronic equipment. Molded of LMDP Linear Medium Density Polyethylene plastic that meets or exceeds MIL STD 810G standards, these Shock Racks also include 8

The SKB Cases 3RR-4U20-22B, 4U 20-inch Deep RR Series Shock Rack Case are available in 8 sizes: 3U, 4U, 5U, 6U, 7U, 9U, 11U and 14U. These Shock Racks are lightweight, shockproof, watertight, dustproof, heat and chemical resistant, perfect for protecting and transporting your sensitive electronic equipment.

Molded of LMDP Linear Medium Density Polyethylene plastic that meets or exceeds MIL-STD 810G standards, these Shock Racks also include 8 elastomeric shock absorbers which allow for a standard payload range of 40 to 150 lbs (optional extended payload range of 160 to 300 lbs can be accommodated as a special-order option). The 20" 3RR Series Removable Racks are 20" deep from rail to rail with a standard 19" rack width per ANSI/EIA-310-C specification and feature square-hole rack rails to accommodate either #10-32 US standard or 6mm International standard cage nuts which are supplied with the cases.

The rugged roto-molded shell ensures industry leading strength and impact resistance. The standard commercial off the shelf (COTS) case comes with 2" deep front and rear lids to accommodate rack gear that is longer than 20". Molded-in stacking ribs and lugs are designed to stack with all SKB 3RR and 3RS cases, as well as competitive manufacturer cases, and feature black powder coated stainless steel hardware that is recessed for protection and 4 comfort grip spring loaded lift handles which allow for easy movement. An automatic pressure relief valve is another standard feature along with gasket sealed lids that include convenient lid hangers to store your lids when your equipment is in operation. Coupling straps are included for securing the racks together when stacked.

The interior of the case features a removable rack with a patent pending "positive lock" latching system that slides open like a file drawer, allowing full access to racked equipment. The interior rack is also completely removable allowing complete frame access for bench integration. Available in Black (standard), Desert Tan, and OD Green.

Product Specification:

Exterior: Hard

Removable Rack: Yes

Rack Units: 4

Front Rail to Back Lid: 24.75 in

Rail to Rail: 19.75 in

Rear Rail to Front Lid: 24.75 in

Product Weight: 47.93 lb

Exterior Length: 31.5 in

Exterior Width: 24 in

Exterior Height: 13.5 in

Package Weight: 51.71 lb

Box Dimensions (LxWxH): 32 x 24.5 x 14"

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55213953511

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Michael Miracle
Cuba, US
★★★★★ 5
Simplicity
Color: Black/Orange
This watch was received exactly as advertised. First off the watch is economical compared to other watches that advertise the same details. I will say that I have gone through numerous Luminox watches only to be disappointed. This watch fits the bill. It does have solar cells which mean it needs to be exposed to light to keep running, not a problem. Three minutes under my surefire light I am golden. The bezel doesn't rotate actually no big deal for me. I have always required that the bezel moves not anymore after having a bezel that rotates I use it next to never. Here's why, the more I rotate the bezel the more the numbers wear off. The strap on the watch with the catches for the strap are perfect. They actually hold the watch strap in place in lieu of like other big name brands that just flop and slide. As far as everyday use goes this watch is my go to. To be honest I have purchased three. This is the only watch I will wear moving forward, yeah the glass my scratch but even the big names like the Luminox I spoke of earlier scratches too.
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Reviewed in the United States on April 4, 2026
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Patricio Ferreira
Lowell, US
★★★★★ 5
Love this Dress Shirt
These are my favorite white dress shirts. Unfortunately, not always in stock. Hard to find. Fits comfortably. Easy to wash and almost wrinkle free after each wash. I barely have to iron them. Fabric is thick, not transparent at all but still breathable. Price you pay was set perfectly according to the quality of the fabric.
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Reviewed in the United States on August 16, 2025
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Verified Purchase
Poetic Justice
Louisville, US
★★★★★ 5
Dressy Shirt, Casual Price
This slim fit Van Heusen has a fair price, but the feel of a fancy shirt. It's lightweight and has a bit of a glossy sheen. Despite all the negative reviews about the cut being too bulky in the middle, this fits me to a T. I'm pretty slim -- at 6' 140# -- and, while slightly generous in shoulder width and sleeve length, the shirt tapers at the waist very nicely. If tail length is the problem, SHIRT STAYS are a cheap, simple solution. Some reviews also complained about wrinkles. Well, DRY CLEAN -- because yeah, if you're tossing a cotton/poly shirt into a washer and dryer, it will get wrinkly. I pressed the shirt off using an IRON without any problem. In fact, this shirt seemed easier to press than others. Great shirt. Good deal.
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Reviewed in the United States on October 12, 2022
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Seanod
Lexington, US
★★★★★ 4
Stain Shield Works, But Not Really a Slim Fit Shirt
Good quality for the price. Impressed with the stain shield which actually prevents sweat/wetness from showing... even in extreme heat. No joke. But this is not a slim fit shirt in my opinion. Too much material at the waist with not a lot of length to be able to assist in tucking it all in. Also, I imagine it's the stain shield, but there is definitely a chemical smell to the shirt that survived a few washings. If you're sensitive to that smell, it could be an issue.
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Reviewed in the United States on August 28, 2021
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G L Rose Wesley
Port Orchard, US
★★★★★ 5
Beautiful shirt!
I bought this along with Calvin Klein gingham tie in blue and although different brands they matched perfectly. I bought these for my 22year old son who doesn’t like to buy clothes except tee shirts. Also got Dockers navy pants for him to wear to funeral. He looked great in all of it and he can wear to other dressy events and look sharp. He was also very happy with the fit and look. Amazon delivery was speedy before we left town! Thank you.
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Reviewed in the United States on September 5, 2021

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