What's the difference between the AI303 and the ZN312?

AI303 is a gravity separator removing bulk liquid and oil via centrifugal force. The ZN312 is a 1-micron filter capturing fine mist/moisture. For best air quality, install AI303 first (Stage 1) and ZN312 second (Stage 2).

Will this cause pressure drop in my air line?

No. The AI303 features an optimized flow path engineered to maintain full downstream pressure. Unlike cheap restrictive filters, it uses centrifugal separation that works WITH the air flow. Your tools will perform at their maximum pressure.

How often do I need to drain the bowl?

Drain frequency depends on humidity. Check the transparent bowl and push the drain valve when water reaches the 1/3 mark (takes 2 seconds). In hot, humid conditions, drain every 30-60 minutes. Standard 1/4" NPT connections install in minutes.

Why aluminum instead of plastic?

Aluminum offers 3 advantages: (1) Thread integrity to prevent stripping, cross-threading, and air leaks. (2) Corrosion resistance against separated moisture. (3) Structural strength to handle pressure surges without cracking. Built to last.

Is the AI303 compatible with my tools?

Yes. With standard 1/4" NPT connections (female inlet, male outlet), the AI303 is compatible with virtually all home and professional compressors and tools, including HVLP guns, airbrushes, and impact wrenches. Operating range: 5-150 PSI.

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LE LEMATEC Air Compressor Water Separator Produces Clean Dry Air with Drain Valve AI303 Air Compressor Filter Rated 150 PSI

LE LEMATEC Air Compressor Water Separator Produces Clean Dry Air with Drain Valve AI303 Air Compressor Filter Rated 150 PSI

Product ID: 731916676

Details

Brand
LE LEMATEC
Compatible Devices
Air
Filter Mounting Type
Slide-In
Filter Shape
Square
Global Trade Identification Number
Item Weight
159 g

💨150 PSI max pressure

🔧Durable aluminum body

🛠️Universal 1/4" brass/steel fittings

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VT13043

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Description

💨 Keep your tools dry, your projects flawless, and your workspace ahead of the curve!

BUILT TO ENDURE - Rugged aluminum construction withstands harsh job site conditions effortlessly.
COMPACT SPACE SMART - Sleek design fits tight workspaces without compromising filtration power.
UNIVERSAL COMPATIBILITY - Easily connects to standard 1/4" fittings for seamless integration with your gear.
MAXIMIZE TOOL EFFICIENCY - Delivers clean, dry air to boost pneumatic tool performance and longevity.
CONSISTENT MOISTURE CONTROL - Advanced oil moisture separator ensures flawless, professional-grade airflow every time.

The LE LEMATEC AI303 Air Compressor Water Separator is a compact, durable inline filter designed to deliver clean, dry air at up to 150 PSI. Featuring a robust aluminum body and universal 1/4" fittings, it efficiently removes oil and moisture to extend tool life and maintain peak performance, making it an essential upgrade for professionals and DIY enthusiasts aiming for flawless pneumatic tool operation.

Specifications

ASIN	B01N4FMOMU
Amazon Bestseller	#321,641 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #482 in Air-Compressor Accessories
Brand Name	LE LEMATEC
Compatible Devices	Air Conditioner
Customer Reviews	4.4 4.4 out of 5 stars (1,616)
Filter Mounting Type	Slide-In
Filter Shape	Square
Global Trade Identification Number	00850030726711
Item Dimensions L x W x Thickness	40L x 40W x 92Th mm
Item Weight	159 g
Manufacturer	Ubiquitous
Manufacturer Part Number	AI-303
Material Type	Aluminum Stainless Steel
Model Number	AI303
Number of Items	1
Product Grade	Brand New
Unit Count	1.0 Count

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