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

The Kleinn Model 51212 is a premium straight compression fitting engineered to establish a secure, leak-free connection within your high-pressure onboard air system. Featuring a heavy-duty, corrosion-resistant brass construction built to withstand demanding automotive environments, this universal pneumatic component is designed with a 1/2" Male NPT threaded end on one side and a 1/2" air line compression fitting on the other. Perfect for maximizing pneumatic efficiency, it allows you to cleanly route oversized 1/2" OD air lines directly from your air tank, compressor, or solenoid valves to deliver a massive volume of air and boost the overall performance of your train horns and heavy-duty onboard accessories.

-   Straight Compression Fitting
-   For 1/2" OD Airline Tubing
-   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-1-2in-m-npt-straight-compression-fitting)
> Updated: 2026-08-31