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Description
Universal Black Water Repellant Pre-Filter 6-1/2" Base 5" Tall 5-1/4" Top (INJ1052BLK)The Injen Technology Black Water Repellant Pre Filter Hydroshield is designed to improve air filter performance by providing an added barrier against moisture and debris. Manufactured from a proprietary base and treated with a hydrophobic water repellent coating, it helps prevent water intrusion while diverting damaging contaminants before they reach the filter element. The material is UV resistant and puncture resistant, and its elastic properties
The Injen Technology Black Water Repellant Pre-Filter Hydroshield is designed to improve air filter performance by providing an added barrier against moisture and debris. Manufactured from a proprietary base and treated with a hydrophobic water-repellent coating, it helps prevent water intrusion while diverting damaging contaminants before they reach the filter element. The material is UV resistant and puncture resistant, and its elastic properties allow it to return to its original shape after servicing. By helping stop contaminants down to .005 inches, this Hydroshield supports consistent airflow and longer service intervals.
Features
- Compatible with SuperNano-Web and 8-layer oiled cotton gauze air filters
- Hydrophobic treatment helps repel water
- Proprietary stretch-fit fabric construction
- UV resistant material
- Puncture resistant design
- Elasticity maintains proper fit after servicing
- Diverts debris before it reaches the filter element
- Supports consistent airflow performance
- Helps reduce maintenance frequency
- Reusable and serviceable design
- Precision tapered shape for secure installation
- Engineered for performance intake systems
Specifications
- Product Type: Air Filter Pre-Filter Hydroshield
- Color: Black
- Base Diameter: 6-1/2 inches
- Height: 5 inches
- Top Diameter: 5-1/4 inches
- Contaminant Protection: Down to .005 inches
- Fitment: Injen X-1045
Notes
- Designed for use with compatible Injen air filters only
- Confirm filter dimensions before ordering
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Accurate
Model: K112BK
Love it. A wonderful addition to my coffee station
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Slightly Inaccurate but Works Well
Pros:
Works perfectly for what I need it for. I use an aeropress and it's super easy to weigh the coffee going in and then the water on top of that. Then start the timer for the brew time and you've got a beautiful cup of coffee! Very bright display, easy to read, and comes with a rubber pad which makes cleanup easy.
Cons:
Not super accurate, but it's fine for making coffee unless you want to be exact. Sometimes the tare doesn't hold perfectly. For example, put your coffee on the scale. Tare it. Take it off. Put it back on. It might read a tenth of a gram or so one way or the other. Never impacted my coffee routine...
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Reviewed in the United States on March 13, 2021
★★★★★ 5
Been working well for over a year
Had this for over a year now and no real issues. The only issue I can think of is that if something is a bit too close to the scale, the scale can fluctuate a bit by a gram or so. Just make sure nothing is touching it, especially anything electronic.
Beyond that, it's a no-nonsense scale that works great with actual tactile buttons. Its refresh rate can lag behind a tiny bit, but you get used to it by stopping your pours in anticipation. For example, I typically do 300mL pours in total, and I usually start slowing down/stopping at around 280g. Battery life is pretty good, but the battery life indicator doesn't do a good job of letting you know when you need to replace the batteries. So you may end up with it powering off mid-brew, but I've only had to replace the batteries once despite daily use over the past year or so. That being said, it's useful to also do stuff like the 4:6 method based on water level vs timer too.
I'd also say it may not be extremely accurate as sometimes it fluctuates by .1 grams, but it is accurate enough for practical purposes. For reference, .1g is simply ~1 coffee bean, and unless you're an espresso perfectionist, 1 coffee bean isn't going to make any real difference.
In summary:
+ Just the essentials if you only want the essentials
+ Tactile buttons
+ Display is pretty nice
+ Accurate enough for practical purposes
+ Battery life very good
+ Will work for at least a year, can't say any longer until I own it for longer
+ Great for the cost
= WIll not refresh weight as quickly as say an acacia scale which costs at least four times as much, easy to compensate for
- Battery life indicator isn't great, so it may power off mid-brew every half year or so
- Sensitive to adjacent electronic devices, 1 or 2 inches is enough distance
- Sensitive to adjacent objects, be mindful of anything that is touching the silicone, even if it's barely touching by a hair
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Reviewed in the United States on September 7, 2025
★★★★★ 5
Works Perfectly, Ignore "Drift" Reviews
Color: Onyx Black, Color: Onyx Black
I'm very happy with the accuracy and refresh rate of the scale. The two tone LED color scheme is a nice touch. I also like that the silicone cover is well-affixed to the scale and won't slide around. I only wish the scale came in white!
Don't be fooled by other reviews. This scale doesn't "drift" any more or less than any other scale. Those people who say otherwise are likely storing it in a very different temperature environment than their use area. See photos for the test I did with boiling hot water in an uninsulated carafe. 0.0g drift on all tests, with or without the silicone protector, after several minutes of letting the carafe sit on the scale surface.
The only time I experienced measurement drift was when I got the package from 30F freezing outdoor conditions, unboxed it and tried it out without letting the scale warm up to ambient. The measured weight slowly dropped until it warmed up to 70F room temp; since then it's been rock solid. That is totally normal for any scale that any manufacturer, cheap or expensive, makes. It's just how this kind of scale works.
Overall if you're looking for a nice scale with timer functionality, I highly recommend the Greater Goods scale.
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Precise and durable
Color: Birch
Best coffee scale for the price. No crazy features which makes it very easy to use. Small enough to store in a drawer and durable enough to not worry about it breaking. Scale is very precise which makes it great for V60 and Chemex
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Reviewed in the United States on April 18, 2026