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Description
Defense Technology First Defense .7% MK-4 Stream OC Aerosol 1012539Defense Technology First Defense . 7% MK 4 Stream OC Aerosol The MK 4 is an ideal size for patrol officers to wear on a duty belt and will deliver 20 25 short bursts of OC at an effective range of 10 12 ft. This . 7% MC OC aerosol product utilizes a stream delivery method providing a target specific, strong concentrated stream for greater standoff. The 3 oz. MK 4 canister will deliver 20 25 short bursts of OC at an effective range of 10 12 ft. The
Defense Technology First Defense .7% MK-4 Stream OC Aerosol
The MK-4 is an ideal size for patrol officers to wear on a duty belt and will deliver 20-25 short bursts of OC at an effective range of 10-12 ft. This .7% MC OC aerosol product utilizes a stream delivery method providing a target-specific, strong concentrated stream for greater standoff.
The 3 oz. MK-4 canister will deliver 20-25 short bursts of OC at an effective range of 10-12 ft. The stream delivery method provides a target-specific, strong concentrated stream for greater standoff. The .7% MC orange banded canister indicates the major capsaicinoid level which is discharged at the nozzle at time of use. The MK-4 is an ideal size for patrol officers to wear on a duty belt. This formulation has been tested and is non-flammable and Electronic Discharge Weapon (EDW) safe. Defense Technology First Defense OC Aerosols are produced in an ISO rated manufacturing facility. All Major Capsaicinoid percentages (MC%) are verified by an Independent Laboratory for quality assurance.
MPN: 1012539
UPC: 022188040050
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Exchange/Return Notes
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4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Fits perfectly
Size: 32mm, Color: Green
Works exactly as expected. Fits the 32mm oil filter housing perfectly and makes removal quick without slipping or rounding. Feels solid and well-made for the price. Used it for an oil change and it saved a lot of time compared to a strap wrench. Simple, effective tool—glad I bought it.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
worked for my dodge.
Size: 28mm, Color: Red
worked for my dodge. light but needs to not be so strong as to brake the plastic. seems like it will keep the plastic in tact and not kill it. nice and bright green i can find it easy.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Perfect Fit 28mm Fuel Filter Socket
Size: 28mm, Color: Red
I bought the Felisbieti 28mm fuel filter socket for a vehicle maintenance project, and it worked perfectly. The fit is precise, gripping the fuel filter securely without slipping or rounding edges.
The build feels sturdy and durable, with a solid metal finish that stands up to repeated use. It fits snugly on my ratchet and made removing and installing the filter much easier and faster than using adjustable tools.
The only minor thing to note is that it’s specific to 28mm filters, so make sure it matches your vehicle. Overall, this socket is well-made, reliable, and a must-have for anyone doing DIY fuel filter work.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Perfect socket for the job
Size: 24mm, Color: Green, Size: 24mm, Color: Green
I purchased this 24mm socket specificaly to remove the oil filter housing on my Ram Promaster 2500 truck.
Since there is limited space to get a standard socket in this area, this low profile socket was able to do the job without requiring me to loosen and push aside other components.
I like that this socket is light weight, made of aluminum with large easy to read size eched into the body. the oil filter housing is made of plastic and does not require a beefy heavy steel socket. The walls on this socket are plenty thick as to cause me no concern about durability.
To me, the green color is a nice touch as will be easy to spot in my socket set for the oil changes.
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Perfect Tool for the Job – Compact, Durable, and Well-Made
Size: 32mm, Color: Green
I bought this 32mm oil filter socket specifically for my VW TDI, and it worked like a charm. The low-profile design is a lifesaver—there’s barely any clearance where the oil filter sits, and this tool fit in perfectly without me having to wrestle with it or remove other parts.
The quality is excellent—it’s made from aerospace-grade aluminum, which means it’s both lightweight and solid. The anodized finish looks great and gives me confidence it won’t rust or degrade like some cheaper tools I’ve used in the past. The 6-point hex design grips the cap snugly and doesn’t round it off, even with decent torque applied using a standard 3/8" ratchet.
I’ve already used it on a couple different vehicles (including a BMW and a Chevy) and it hasn’t slipped once. It’s a small tool, but it solves a big headache. For anyone doing their own oil changes—especially if you're dealing with tight engine bays—this socket is 100% worth it.
Bonus points for the bright green color—it’s easy to find in the toolbox! Highly recommend.
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Reviewed in the United States on July 13, 2025
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