When choosing fittings for an air horn or air suspension system, the material matters just as much as the design. Brass NPT (National Pipe Thread) fittings are widely regarded as the industry standard for a good reason—they offer the perfect balance of durability, corrosion resistance, and ease of installation. Compared to plastic or steel fittings, brass consistently outperforms in demanding automotive and industrial environments.
Plastic fittings are lightweight and inexpensive, making them an appealing choice for low-pressure applications. However, they can become brittle over time, especially in extreme temperatures or when exposed to UV rays. In an air system that relies on consistent pressure and airtight seals, plastic often falls short in the long run.
Steel fittings, on the other hand, are incredibly strong and durable. However, they’re prone to rust, especially if they’re not stainless or coated. Over time, rust can cause leaks, thread damage, or even complete failure. Steel fittings are also more difficult to install and remove because they’re less forgiving when cross-threaded or overtightened.
Brass strikes the right balance. It resists corrosion, handles high pressures with ease, and is softer than steel—meaning it forms tight seals without damaging mating components. It's also less likely to seize or corrode, making future maintenance easier.
That’s why HornBlasters carries a full lineup of Versatile Brass NPT Fittings & Fitting Kits, trusted by both DIYers and professionals. These fittings are precision-machined and tested to ensure performance in even the most rugged air systems. If you’re building an air system that demands reliability, brass is the smart choice—offering peace of mind, longer life, and better overall value.