The Dominator International HPA Air Tank (DS-U00400) is precision-engineered for robust, reliable, high-flow air management in your high-pressure air (HPA) setup. Designed for competitive airsoft, paintball, and custom pneumatic configurations, it provides leak-free connections, maximum safety under pressure, and long-lasting durability.
Whether you are building a custom remote rig, upgrading fill-line components, or maintaining your high-pressure regulator, the DS-U00400 delivers professional-grade performance with exact tolerances.
Key Features
- CNC Precision Machined: Crafted from aerospace-grade alloy/brass for superior wear resistance and consistent, tight seals.
- High Working Pressure Rating: Built to withstand high-pressure air spikes without structural fatigue.
- Anti-Corrosion Surface Finish: Anodized / electroplated treatment protects against sweat, dirt, humidity, and rugged field conditions.
- Universal HPA Compatibility: Standard threading and fitting interface, compatible with mainstream airsoft and paintball HPA tanks, regulators, lines, and adapters.
- High-Flow Dynamic Airway: Optimized internal bore minimizes flow restriction, for consistent shot-to-shot FPS and cycle consistency.
Technical Specifications
| Brand | Dominator International |
| Series / Category | HPA Utilities / Pneumatic Accessories |
| Model / SKU | DS-U00400 |
| Material | CNC Machined Metal / High-Grade Alloy |
| Gas / Pressure Compatibility | HPA (High Pressure Air), Compressed Air, Nitrogen |
| Application | Airsoft HPA Engines, Remote Lines, Regulators & Fill Systems |
Package Includes
- 1x Dominator International HPA Utility Component (DS-U00400)
⚠️ Safety & Installation Notice: Always make sure your HPA system is completely depressurized before installing, adjusting, or disassembling any high-pressure utilities. Use appropriate thread sealant or O-rings where specified, and do not exceed rated operating pressures.
Frequently Asked Questions
What is this used for?
The Dominator HPA Air Tank DS-U00400 is an HPA (high-pressure air) component for airsoft HPA setups. Match its pressure rating and fittings to the rest of your rig — regulator, line, and tank must all be rated for the same working pressure.
How should I store the tank?
Store it depressurized or at low pressure, upright, in a cool place away from direct sunlight, with the valve protected from knocks. Never store a tank in a hot car — heat raises internal pressure. Have the tank inspected and hydro-tested at the intervals stamped on it.
Any safety notes?
Treat every HPA component as pressurized equipment: inspect threads and O-rings before each use, never use damaged fittings, and depressurize the rig before disconnecting lines.
What warranty and shipping cover this item?
It is covered by the Airgrix 30-day limited warranty and ships from our California warehouse. At $70.99 it qualifies for free US shipping on its own (free on orders $59+). Returns are handled under the store returns policy — see our Ordering, Shipping & Warranty FAQ page for the details.
Dominator HPA Air Tank DS-U00400 | High-Pressure Tank with Regulator
Dominator HPA Air Tank DS-U00400 | High-Pressure Tank with Regulator
📦 Ships from Los Angeles, CA 🚚 Delivery 2–5 days
⚠ CA Prop 65: WARNING: Cancer and reproductive harm — www.P65Warnings.ca.gov · Details
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The Dominator International HPA Air Tank (DS-U00400) is precision-engineered for robust, reliable, high-flow air management in your high-pressure air (HPA) setup. Designed for competitive airsoft, paintball, and custom pneumatic configurations, it provides leak-free connections, maximum safety under pressure, and long-lasting durability.
Whether you are building a custom remote rig, upgrading fill-line components, or maintaining your high-pressure regulator, the DS-U00400 delivers professional-grade performance with exact tolerances.
Key Features
- CNC Precision Machined: Crafted from aerospace-grade alloy/brass for superior wear resistance and consistent, tight seals.
- High Working Pressure Rating: Built to withstand high-pressure air spikes without structural fatigue.
- Anti-Corrosion Surface Finish: Anodized / electroplated treatment protects against sweat, dirt, humidity, and rugged field conditions.
- Universal HPA Compatibility: Standard threading and fitting interface, compatible with mainstream airsoft and paintball HPA tanks, regulators, lines, and adapters.
- High-Flow Dynamic Airway: Optimized internal bore minimizes flow restriction, for consistent shot-to-shot FPS and cycle consistency.
Technical Specifications
| Brand | Dominator International |
| Series / Category | HPA Utilities / Pneumatic Accessories |
| Model / SKU | DS-U00400 |
| Material | CNC Machined Metal / High-Grade Alloy |
| Gas / Pressure Compatibility | HPA (High Pressure Air), Compressed Air, Nitrogen |
| Application | Airsoft HPA Engines, Remote Lines, Regulators & Fill Systems |
Package Includes
- 1x Dominator International HPA Utility Component (DS-U00400)
⚠️ Safety & Installation Notice: Always make sure your HPA system is completely depressurized before installing, adjusting, or disassembling any high-pressure utilities. Use appropriate thread sealant or O-rings where specified, and do not exceed rated operating pressures.
Frequently Asked Questions
What is this used for?
The Dominator HPA Air Tank DS-U00400 is an HPA (high-pressure air) component for airsoft HPA setups. Match its pressure rating and fittings to the rest of your rig — regulator, line, and tank must all be rated for the same working pressure.
How should I store the tank?
Store it depressurized or at low pressure, upright, in a cool place away from direct sunlight, with the valve protected from knocks. Never store a tank in a hot car — heat raises internal pressure. Have the tank inspected and hydro-tested at the intervals stamped on it.
Any safety notes?
Treat every HPA component as pressurized equipment: inspect threads and O-rings before each use, never use damaged fittings, and depressurize the rig before disconnecting lines.
What warranty and shipping cover this item?
It is covered by the Airgrix 30-day limited warranty and ships from our California warehouse. At $70.99 it qualifies for free US shipping on its own (free on orders $59+). Returns are handled under the store returns policy — see our Ordering, Shipping & Warranty FAQ page for the details.

Age & Legal Notice
You must be 18 years or older to purchase airsoft products. Airsoft regulations vary by state and locality — please check your local laws before ordering. By completing your purchase, you accept full responsibility for the lawful use, possession, and storage of this product.