When it comes to lifejackets, every component plays a role in keeping you safe – and one of the most important parts is the Lifejacket Inflator Manifold. This is the piece that connects your CO₂ cylinder to the bladder and makes sure gas flows exactly where it needs to go when you need it most.
While there are different lifejacket inflator manifold designs, one of the biggest choices manufacturers face is which material to use: brass or plastic. Each option offers its own advantages and is suited to different applications. Here’s a simple guide to help you decide.
Brass Manifolds: The Gold Standard
Brass manifolds have been trusted for decades – and for good reason.
Advantages:
Incredibly durable – stands up to years of use
Corrosion-resistant – built for harsh marine environments
Long-lasting threads – can handle repeated cylinder changes
Thermally stable – performs in a wide range of temperatures
Perfect for: professional, military, or industrial use where performance is non-negotiable.
Plastic Manifolds: Light and Modern
Thanks to modern engineering plastics, plastic manifolds are now a strong and reliable alternative to brass.
Advantages:
Lightweight comfort – reduces overall jacket weight
Cost-effective – helps keep lifejackets affordable
Corrosion-proof – immune to galvanic corrosion
Modern look – pairs well with sleek, low-profile jacket designs
Perfect for: recreational and entry-level lifejackets where weight and cost are key considerations.
The Bottom Line
- Go with Brass if durability, long service life, and rugged reliability are your top priorities.
- Go with Plastic if you want a lightweight, cost-effective solution with excellent corrosion resistance.
Both options are designed to keep you safe — the right choice depends on the type of lifejacket you’re building and the environment where it will be used.
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