Summary
The APEX Design USA Closed Flow Spring Stop converts a High Flow Push-On Chuck from open flow to closed flow. Closed flow is what gauge work and shared multi-tyre lines need - the chuck holds pressure unless a core is depressed - and this replacement part is how a converted or mislaid stop gets put right.
Best For
- Push-on chuck owners converting to closed flow for gauge or multi-line use
- Replacing a lost or worn closed flow stop
Key Specs
- Manufacturer: APEX Design USA
- Product Type: Spring stop (closed flow), replacement part
- SKU: X02-12-010
- Compatibility: APEX High Flow Push-On Chuck
Fitment And Setup Checks
Confirm your chuck is the APEX High Flow Push-On model, swap the spring stop cleanly, and check the chuck holds pressure as expected before relying on it in a shared-line system.
Technical Specifications
| Manufacturer | APEX Design USA |
| Product Type | Closed flow spring stop |
| SKU | X02-12-010 |
| Compatibility | APEX High Flow Push-On Chuck |
Frequently Asked Questions
When do I want closed flow?
Whenever the line must hold air on its own - gauge-controlled filling and multi-tyre harnesses both depend on it.
Need to go the other way? The open flow spring stop converts the same chuck back.
Ready to order?
Add APEX Design USA Closed Flow Spring Stop for Push-On Chuck to your build
Add to cart now. If fitment is unclear, send us your vehicle, setup and goal before ordering.

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Need help with this product?
Send us your vehicle, current setup and what you want the product to do before ordering. We will help confirm fitment, product choice or the next step.