DOT- and NGV2-certified 16-inch 3600 psi CNG storage cylinder for on-board vehicle use, shown with integrated valve assembly.
Product name: 16 inch 3600 psi CNG Storage    » Inquire
Availability: Q4 2025
Description: CNG Vessel for On Board Vehicle
Unique Features: Drop in replacement.
Common Uses: Storage of CNG.
Applications: CNG storage for compressed natural gas (CNG)-powered vehicles.
Certifications: DOT, NGV2
Product type: CNG Cylinders for Vehicles
Compact 11-inch 3600 psi CNG cylinder with valve assembly, certified to DOT and NGV2 standards for on-board storage in natural gas-powered vehicles.
Product name: 11 Inch 3600 psi CNG Storage    » Inquire
Availability: In Stock or Short Wait
Description: CNG Vessel for On Board Vehicle
Unique Features: Small diameter
Common Uses: Storage of CNG
Applications: CNG storage for compressed natural gas (CNG)-powered vehicles.
Certifications: DOT, NGV2
Product type: CNG Cylinders for Vehicles
Engineered plastic STEB liner for fiber evaluation and composite testing, shown with threaded metallic end fittings for small pressure vessel applications.
Product name: Engineered Plastic STEB Liner    » Inquire
Availability: In Stock or Short Wait
Description: STEB Liner for testing
Unique Features: Plastic liner for STEB evaluation.
Common Uses: Fiber evaluation.
Applications: Liner for any application, or for carbon, glass, and aramid fiber evaluation.
Certifications: N/A
Product type: Small Pressure Vessels
Aluminum Fiber Translation liner for STEB testing and fiber evaluation, shown with a raw metallic surface and dual-port design for small pressure vessel applications.
Product name: Aluminum Fiber Translation Liner    » Inquire
Availability: In Stock or Short Wait
Description: STEB liner for testing.
Unique Features: Alternative to one port STEB.
Common Uses: Fiber evaluation.
Applications: Liner for any application, or for carbon, glass, and aramid fiber evaluation.
Certifications: N/A
Product type: Small Pressure Vessels
Carbon fiber-wrapped 7-inch 9L single-port composite pressure vessel for high-pressure gas storage, ideal for UAV, H₂ fuel, and blowdown system applications.
Product name: 7 inch 9L 1 port 350 bar and 500 bar Family    » Inquire
Availability: Q1 2026
Description: Lightweight gas storage.
Unique Features: Lightweight and cost-efficient with a single port.
Common Uses: Storage of oxidizers, blowdown systems, hydrogen (H₂), fuel, and spare air.
Applications: UAVs, UUVs, AUVs, air/nitrogen storage, hydrogen (H₂) fuel tanks, blowdown systems, and evacuation slides.
Certifications: DOT
Product type: Small Pressure Vessels
Steelhead Composites 3000 psi Type III carbon pressure vessels in various sizes, designed for lightweight, high-performance gas storage applications.
Product name: 3000 psi (207 bar) Type III Carbon Family    » Inquire
Availability: Q1 2026
Description: Gas Storage
Unique Features: Lightweight, cost-efficient, dual-port design.
Common Uses: Storage of oxidizers, blowdown gas, hydrogen (H₂), fuel, and spare air.
Applications: UAVs, UUVs, AUVs, air/nitrogen storage, and hydrogen (H₂) fuel tanks.
Certifications: DOT
Product type: Small Pressure Vessels
3000 psi (207 bar) Type III Kevlar Family hydrogen vessel
Product name: 3000 psi (207 bar) Type III Kevlar Family    » Inquire
Availability: In Stock or Short Wait
Description: Fully demisable composite overwrapped pressure vessel (COPV)
Unique Features: Burns up during reentry into the atmosphere.
Common Uses: Storage of oxidizers or pressurant tanks.
Applications: Oxidizer storage for satellites.
Certifications: DOT
Product type: Small Pressure Vessels
12-inch 6000 psi (414 bar) Type III hydrogen pressure vessel from Steelhead Composites, featuring carbon fiber overwrap and extra-large port for high-pressure gas storage.
Product name: 12 inch 6000 psi (414 bar) Type III Family    » Inquire
Availability: Q1 2026
Description: Gas transport and ground storage.
Unique Features: Designed with extra-large ports for enhanced flow capacity and an offset center of gravity for optimized handling and integration.
Common Uses: Individual or bundled storage of H₂, N₂, He, argon, or breathing air.
Applications: Industrial gas storage units.
Certifications: DOT Pending
Product type: Large Pressure Vessels
Type III Custom Space, Rocket or Defense gas and hydrogen cylinder featuring carbon fiber overwrap and dual ports for high-pressure aerospace and defense applications.
Product name: Type III Custom Space, Rocket or Defense    » Inquire
Availability: Made to Specification
Description: S-081 custom pressure vessels.
Unique Features: Features fully custom ports and a lightweight build.
Common Uses: For storage of oxidizers or pressurant gases.
Applications: Rockets, satellites, manned aircraft, and UAVs.
Certifications: S-080, S-081
Product type: N/A
Close-up of multiple Steelhead Composites 13-inch 5000 psi Type III pressure vessels with large port openings, designed for high-pressure gas transport and storage.
Product name: 13 inch 5000 psi (350 bar) Type III Family    » Inquire
Availability: Q4 2025
Description: Gas transport and ground storage.
Unique Features: Equipped with large port openings for high-flow capacity and easy system integration.
Common Uses: For individual or bundled storage of hydrogen (H₂), nitrogen (N₂), helium (He), argon, and breathing air across industrial and energy sectors.
Applications: Tank farms, hydrogen (H₂) gas storage, air cascade systems, and CNG transport.
Certifications: DOT Pending
Product type: Large Pressure Vessels
Close-up view of a 17 inch 5000 psi (350 bar) Type III Family Pressure Vessel showing large port fitting for high-pressure gas transfer and ground storage applications.
Product name: 17 inch 5000 psi (350 bar) Type III Family    » Inquire
Availability: In Stock or Short Wait
Description: Gas transport and ground storage.
Unique Features: Large port openings.
Common Uses: Individual cylinder, bundle, or MEGC configurations for H₂, N₂, He, Argon, and breathing air.
Applications: Tank farms, hydrogen (H₂) gas storage, air cascade systems, and CNG transport.
Certifications: DOT, PED
Product type: Large Pressure Vessels