# Kleinn 1/2In OD Tubing 1/4In M NPT Straight Compression Fitting

The Kleinn Model 51214 is a premium pneumatic compression fitting engineered to establish a secure, leak-free connection between your rigid air lines and system components within a high-pressure onboard air system. Featuring a heavy-duty, corrosion-resistant solid brass construction built to withstand demanding automotive and outdoor environments, this universal plumbing component is designed with a 1/4" Male NPT threaded end on one side and a 1/2" O.D. compression tube connection on the other. Perfect for high-demand setups, it allows you to cleanly adapt oversized 1/2" air lines directly into your air tank, compressor, or solenoid valves, ensuring maximum airflow and optimal reliability for your air horns and onboard accessories.

-   1/2" Airline Compression
-   1/4" Male NPT Fitting
-   Brass construction

## Details

- **Price:** 39.59 CAD
- **Vendor:** Kleinn Air Horns
- **Type:** Fittings

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.59 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/kleinn-1-2in-od-tubing-1-4in-m-npt-straight-compression-fitting)
> Updated: 2026-08-31