Zeagle Compact Pony SPG PSI
In stock — ships from Irvine, CA
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Zeagle Compact Pony SPG PSI is backordered and will ship as soon as it is back in stock.
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Product Information
The Zeagle Compact Pony SPG PSI is a compact submersible pressure gauge with chromed brass construction that reads tank pressure in PSI, made for divers who need an air check on a pony bottle, hang bottle or shop air tank system instead of a full size console gauge.
Who it is for
This gauge suits divers running a redundant pony bottle or a hang bottle, and anyone wanting a dedicated readout on a small cylinder. It is also a practical choice for shop air tank systems, where a small, clear PSI readout is all that is needed to confirm what is left in the cylinder. Because the footprint is small, it keeps hoses tidy and avoids the clutter and snag points that come with longer hose runs during a dive or during gear setup on deck.
Key details
- Type: compact submersible pressure gauge (SPG) for scuba and diving applications.
- Display: PSI readout for monitoring remaining cylinder pressure.
- Construction: chromed brass for durability and corrosion resistance in wet environments.
- Applications: pony bottles, hang bottles and shop air tank systems.
- Part reference: Zeagle MPN and SKU 331-PG01-AA, UPC 882689099199.
Used on a pony or hang bottle, the gauge gives a quick glance confirmation of available gas, which is exactly what a redundant or staged cylinder needs. Its small size keeps hoses tidy and avoids the clutter of longer hose runs during a dive.
DiveCatalog.com is an authorized Zeagle dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you have questions about hose fitting, configuration or whether this compact gauge is the right match for your pony bottle setup.
- Compact submersible pressure gauge sized for setups where a full size gauge is not required.
- PSI readout for a clear check of remaining cylinder pressure.
- Chromed brass construction chosen for durability and corrosion resistance in wet environments.
- Perfect for pony bottles as a dedicated readout on a redundant air source.
- Works with hang bottles for quick air checks on staged cylinders.
- Great for shop air tank systems as well as diving use.
- Small footprint keeps hoses tidy and reduces clutter from longer hose runs.
- Quick air read helps manage remaining gas during gear configuration and diving operations.
- Zeagle part number 331-PG01-AA for easy reordering and service reference.
| Brand | Zeagle |
| Model | Compact Pony SPG PSI |
| Product type | Accessories - Tank |
| Instrument type | Compact submersible pressure gauge (SPG) |
| Display units | PSI |
| Construction | Chromed brass |
| Corrosion resistance | Chromed brass construction for wet environments |
| Intended applications | Pony bottles, hang bottles, shop air tank systems |
| MPN | 331-PG01-AA |
| SKU | 331-PG01-AA |
| UPC | 882689099199 |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
What is the Zeagle Compact Pony SPG used for?
It is a compact submersible pressure gauge for checking cylinder pressure on pony bottles, hang bottles and shop air tank systems. It reads in PSI and is intended for setups where a full size console gauge is not required, so you get a quick air check on a redundant or staged cylinder without adding bulk to your rig.
Does this gauge read in PSI or bar?
It reads in PSI. It is the Zeagle Compact Pony SPG PSI, part number 331-PG01-AA, so pressure is shown in pounds per square inch. If you dive with a team or on a system that references bar, keep that in mind when comparing readings between gauges.
Why choose a compact SPG instead of a full size gauge?
A compact SPG keeps hoses tidy and reduces clutter during a dive. On a pony bottle or hang bottle you only need a quick glance to confirm remaining air, so the smaller footprint keeps hoses tidy and suits setups where a full size gauge is not required.
Is the Compact Pony SPG corrosion resistant?
Yes. The gauge uses chromed brass construction for durability and corrosion resistance in wet environments. As with any scuba instrument, rinse it with fresh water after saltwater use and let it dry before storage to get the longest service life from the gauge.












