Description
Product Overview
The Uni Filter UP-123 breather filter, manufactured by 4into1, is engineered for a vehicle‑specific fit, ensuring optimal engine ventilation. Constructed with a painted exterior for corrosion resistance, the filter measures 2.8 x 2.5 x 1.7 inches and weighs only 1.6 ounces. Its exclusive zip‑tie loop eliminates the need for loose hoses, providing a tidy and secure installation.
Usage
Designed for a wide range of passenger cars and light trucks, this breather filter excels in everyday driving, performance tuning, and off‑road conditions. It is ideal for mechanics, DIY enthusiasts, and fleet operators who demand consistent airflow and durability. 
Why Choose Us
Uni Filter combines rigorous testing with high‑quality materials to deliver a product that meets OEM standards. The painted finish resists rust, while the zip‑tie loop ensures a leak‑free seal, reducing maintenance costs and extending engine life. Backed by a 4.6‑star rating from 125 verified customers, confidence in performance is guaranteed.
Key Features
- Vehicle‑specific fit for precise installation
- Durable painted exterior resists corrosion
- Exclusive zip‑tie loop eliminates loose hoses
- Compact size 2.8 x 2.5 x 1.7 inches, lightweight 1.6 oz
- Highly rated 4.6/5 stars by automotive professionals
FAQ
Is this filter compatible with my car model?
The UP-123 is designed as a vehicle‑specific fit. Check the OEM part number UP-123 against your vehicle’s specifications to confirm compatibility.
How does the zip‑tie loop improve installation?
The integrated zip‑tie loop secures the filter directly to the frame, preventing loose hoses and ensuring a tight seal for optimal airflow.
Can I replace this filter myself?
Yes, the compact design and zip‑tie mounting make it a straightforward DIY replacement. No special tools are required beyond a standard zip‑tie.
What is the expected lifespan of the filter?
Under normal driving conditions, the filter should be replaced every 12,000‑15,000 miles, or sooner in high‑dust environments.
Does the painted exterior affect filter performance?
The painted finish is purely protective against corrosion and does not impede airflow or filtration efficiency.







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