1/4" Air Oil Water Separator Filter AI-303
This 1/4-inch inline separator is designed for high-efficiency filtration, instantly removing moisture and oil from the air in an airline. It is made from durable aluminum and brass and ensures smooth operation and extended tool life.
LE-AI303 Professional Metal Case Inline Air Filter for Spray Guns and Pneumatic Tools
A point-of-use compressed air filtration solution for distributors, importers, and industrial buyers who need cleaner air at the tool, stronger housing durability, and private-label supply support.
Why B2B Buyers Choose LEMATEC
The LE-AI303 gives distributors a clear product story: stop water, oil, and particles near the tool before they affect finish quality, tool life, or daily workshop consistency.
Its aluminum housing supports a stronger category position than basic plastic filter accessories, especially for users working around solvents, impact, and repeated shop handling.
Product body, housing, logo placement, packaging, product images, and technical documents can support OEM/ODM and distributor catalog programs.
The AI303 can work as part of a wider air filter and regulator category, helping buyers build a more complete compressed-air accessory lineup.
OEM / ODM and Wholesale Supply Support
Discuss laser marking, silk printing, body or housing details, packaging direction, and catalog presentation for private-label projects.
Use product imagery, technical visuals, operation details, and supporting media to improve distributor listings and reduce sales explanation friction.
Core Engineering Advantages
Heavy-Duty Aluminum Housing
The AI303 uses a metal housing to support higher durability in shop environments. This makes it easier to position as a professional inline air filter for users who want stronger impact resistance and a more robust point-of-use accessory.
Stops Water, Oil, and Particles
The product messaging is clear: the filter is built to help prevent moisture, oil, and particles from reaching downstream tools. That supports cleaner spray work and helps protect pneumatic tools from contamination-related issues.
Push-Button Manual Drain
The manual drain lets users release collected water and contamination quickly. For daily shop use, this is important because filtration only stays useful when maintenance is easy enough to repeat.
Inline Point-of-Use Fit
The 1/4 inch NPT format and inline body make the AI303 suitable near spray guns, air tools, and other point-of-use setups where buyers want filtration close to the application.
Application Fit
Clean air matters for spray pattern stability and finish quality. The AI303 is positioned as a compact filter option near spray guns to help reduce moisture and contamination before atomization.
Dryer, cleaner air helps protect sensitive downstream tools, including plasma cutting systems, sanders, and impact tools that can be affected by moisture and particles.
For MRO teams and workshops, the product can be positioned as a practical point-of-use filter for daily compressed-air reliability.
LE-AI303 vs Basic Plastic Inline Filters
| Comparison Point | LE-AI303 Metal Case Inline Air Filter | Basic Plastic Inline Filter |
|---|---|---|
| Housing Positioning | Metal case design for professional workshop positioning | Usually positioned as a lighter-duty accessory |
| Application Fit | Spray guns, plasma cutting, pneumatic tools, MRO | General air-line filtering where durability demands are lower |
| Maintenance | Push-button manual drain for quick water release | Drain design varies by model |
| Buyer Value | Higher-value SKU for professional tool and air-line categories | Lower-cost accessory category |
Technical Procurement Summary
Air Filtration Product Line Fit
The LE-AI303 can be positioned as part of a broader compressed-air filtration category. For distributors and tool brands, this series-level view helps buyers compare inline filters, filter-regulator combinations, and moisture-control accessories before selecting the right product group for spray guns, air tools, and workshop air-line setups.
FAQ for B2B Buyers
It is used as a point-of-use compressed air filter to help separate water, oil, and particles before air reaches spray guns, plasma cutters, sanders, impact tools, and other pneumatic equipment.
A metal case helps buyers position the product as a more durable professional air-line accessory, especially for workshop users concerned with impact resistance and solvent-heavy environments.
Yes. LEMATEC supports OEM/ODM discussion, logo placement, color and packaging direction, sales images, technical documents, samples, and wholesale supply.
It is designed as a point-of-use inline filter, so it is commonly positioned close to the spray gun or pneumatic tool where cleaner air is needed before application.
The LE-AI303 uses a die-cast aluminum alloy casing with solid brass fittings, so it holds up against impacts and shop solvents that tend to crack plastic filters. The metal housing supports a maximum pressure of 150 PSI, with 90 PSI as the optimal operating pressure.
Standard wholesale packaging runs 10 sets per inner box and 10 inner boxes per export carton. Orders ship from our factory in Taiwan 20 to 45 days after confirmation. We also offer OEM/ODM customization for related products such as the AI303-R1 filter-regulator and the ZN312E desiccant dryer.
Request Samples and Wholesale Quote
Vic Chen | General Manager, LEMATEC Taiwan
We support distributors, importers, and tool brands evaluating the LE-AI303 metal case inline air filter for air-line accessory programs, spray gun channels, and private-label compressed-air categories.
Request Samples and QuoteTechnical Data Sheet
| Model Number | AI-303 |
|---|---|
| Housing Material | Industrial Aluminum (Impact Resistant) |
| Inlet / Outlet Material | Heavy Duty Brass |
| Port Size | 1/4" NPT (Universal Fit) |
| Drain Type | Push-Button Release Valve |
| Operating Pressure | 90 PSI (Optimal) / 150 PSI (Max) |
| Product Grade | Professional Grade / Heavy Duty |
| Country of Origin | Taiwan Made in Taiwan |
⚙️ Heavy-Duty Construction
Constructed with a solid Aluminum case and Brass fittings. Unlike plastic filters, this unit is designed to withstand drops, solvents, and tough workshop environments.
💧 How to Use the Drain Valve
Simply press the release valve button at the bottom of the unit to instantly eject all trapped water, oil, and dirt particles from the system.
- Metal Case 1/4" Air Oil Water Separator Filter with Drain Valve
- Packaging list: Blister Card/Box
- Carton:10 sets/inner box. 10 inners box/ctn
- weight:16.5/18.5kgs/2.0'
- Delivery Time:20~45 Days After Order Confirmed
- Size:0.166kgs
- Inner box:29.0 * 15.0 * 10.5 cmd
- Ctn:61.0 * 30.5 * 46.0 cmd