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💨 Keep your airflow flawless and your tools unstoppable!
The LE LEMATEC Air Compressor Water Separator (model AI303) is a compact, high-efficiency inline filter designed to remove moisture, oil, and dirt from compressed air lines. Featuring a universal 1/4" NPT fit, rugged aluminum and brass construction, and a convenient push-button drain valve, it ensures dry, clean air for superior paint finishes and tool longevity in professional and industrial settings.















| ASIN | B01N4FMOMU |
| Best Sellers Rank | #47,763 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #89 in Air-Compressor Accessories |
| Brand | LE LEMATEC |
| Brand Name | LE LEMATEC |
| Compatible Devices | air compressor air filter, air water separator for air compressor, compressor air dyer, compressor air filter, inline air dryer Compatible Devices air compressor air filter, air water separator for air compressor, compressor air dyer, compressor air filter, inline air dryer See more |
| Customer Reviews | 4.4 out of 5 stars 1,734 Reviews |
| Filter Mounting Type | Screw In |
| Global Trade Identification Number | 00850030726711 |
| Item Dimensions L x W x Thickness | 1.57"L x 1.57"W x 3.62"Th |
| Item Highlight | Moisture trap, paint gun & plasma cutter ready, auto-draining pneumatic dryer, model AI303 |
| Item Weight | 5.6 ounces |
| Manufacturer | LE LEMATEC |
| Manufacturer Part Number | AI-303 |
| Material | Aluminum, Stainless Steel |
| Material Type | Aluminum, Stainless Steel |
| Model Number | AI303 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 1.57"L x 1.57"W x 3.62"Th |
| Product Grade | Like New |
| Unit Count | 1 Count |
D**N
Convenient and good value
This is a great little filter/dryer! I purchased this air dryer for use with an old 3-gallon horizontal air compressor that a friend gifted to me, and which I use for low-flow applications. Rather than installing the dryer right at the tool, where if would increase the overall size of the tool and could be snagged, or be subject to the weight of the hose, I installed it at the compressor outlet quick coupler, where it is out of the way and not subject to excessive pulling. When I'm done with the task I simply rotate the dryer around so that the drain button is at the low end and press the button to expel the condensate. Quick, easy, totally effective, and great value.
S**.
it works
After washing and rinsing my house windows, I use my compressor to dry them. On humid days, the compressor would blow condensate onto the glass, making it hard to get a spot free result. This water separator solves that problem. If you're curious, here's my routine. I have a 1 story house BTW. Wet windows with hose. Use long handled sheepskin & bucket of soapy water to wash windows. Rinse with hose. Use compressor w/ 4' extension to blow water off, top to bottom, side to side until dry. Result: No spots, no streaks. no climbing ladders.
R**N
Can’t get more then 30psi
Works but for some reason I can’t get more then 30psi from it does anybody know why?I have a 100psi coming from air line
H**K
May Need Adaptors
I started the install but realized there is a directional arrow for flow. There is a female and male end. If I follow the arrow, I cannot install because my systems male and female are reversed. UPDATE: Got adaptors on Amazon, item seems to function as intended.
O**E
Update .... One of two units are unusable.
Leak at point between air release button and body of unit. Both ordered at different times. First one appears to be great, installed with ease, no leaks and does a good job eliminating moisture. Second unit leaks to the point that it is unusable. Unfortunately the bad unit sat on my desk for too long, and wasn't returnable. I hope the company makes it right. Only 50% worked. Not satisfactory at all. UPDATE - I was contacted by the seller who will replace the defective unit. Changed from 2 stars to 4 stars due to sellers response. After install will update review if necessary. Exemplary Customer Service. The company was quick to make things right. Cannot say enough for them. Used on two compressors. Both units in a 1800 sq ft shop, 1 upstairs and 1 downstairs. Both work just fine. If your looking to keep your airtools and plasma cutter running smooth, keep your air clean. These do the job Thank You
D**M
Must have
works great and was easy to install. The filter has reduced the amount of condensation in my air take and seems to be well built with no issues.
J**D
Slow air flow
Slowed air flow down for my paint gun, had a hard time keeping up higher working pressure. Paint was clean so I think the filter worked fine, but I never had a drop of water out of the drain to know if it was catching any moisture. I would buy a better quality one next time though.
L**N
It really works
Works great a clearing the water out of the air line
A**K
It works and is quite good
Installed one of these and it definitely traps moisture, drained the compressor and used this as defence Works
た**う
15年前に取り付けたものがエアー漏れするようになったので交換
15年前に取り付けたものがエアー漏れするようになったので交換しようと思い検索していたらアマゾンにあった。 安くは無い商品だが、ほかの店には無いし、安心して使えるので◯。
A**.
Perfekt
Macht was es soll. Verarbeitung super
M**D
Versatile product
The product is totally amazing and works even better than described, highly I would recommend for all, a must have industrial product. Made in Taiwan the quality is amazing. Do not miss out on this in line filter from le matec.
I**A
Show de bola
Tudo ok.
Trustpilot
1 month ago
2 months ago