Hollis Low Profile Pressure Gauge Module Metal w/o Boot
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
Hollis Low Profile Pressure Gauge Module Metal w/o Boot - PSI is backordered and will ship as soon as it is back in stock.
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Product Information
The Hollis Low Profile Pressure Gauge Module Metal w/o Boot is a compact brass submersible pressure gauge (SPG) module built for streamlined rigging on stage and deco bottles. It uses a super hard PVD coated brass housing with a Bourdon tube, a 1.5 in (38.1 mm) scratch-resistant plastic lens, reads 0 to 5000 PSI (0 to 400 BAR) and is oxygen clean for mixed gas service.
Who it is for
This module suits divers who want a low-weight, small form factor gauge on a side-slung cylinder. Because it ships without a boot and keeps a low weight and small form factor, it stays tight against stage and deco bottles. The high-contrast black face with white markings and a luminescent needle makes it easy to confirm a pressure in dim water or bright surface light, and the oxygen clean build means it can be dedicated to a nitrox or oxygen deco bottle.
Key details
- Dial size: 1.5 in (38.1 mm) diameter
- Range: 0 to 5000 PSI, or 0 to 400 BAR on the BAR version
- Housing: super hard PVD coated brass with a Bourdon tube movement
- Lens: scratch-resistant plastic
- Fittings: standard Air Spool and Viton O-rings
- Gas service: oxygen clean
Compatibility and sizing
Choose the PSI version (SKU 204.2308.07) or the BAR version (SKU 204.2309.07) to match the rest of your gauges. The module arrives with the standard Air Spool and Viton O-rings. It is sold as a module without a boot, which is what keeps the profile low on a stage or deco bottle.
What's in the box
- Hollis Low Profile Pressure Gauge Module (PSI or BAR)
- Standard Air Spool
- Viton O-rings
DiveCatalog.com is an authorized Hollis dealer and a real dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you want help confirming hose and spool compatibility or deciding between the PSI and BAR dial.
- Low-profile module low weight and a small form factor for streamlined rigging on stage and deco bottles.
- PVD coated brass housing super hard PVD coating over brass, with a Bourdon tube movement.
- Scratch-resistant lens plastic lens built to stay readable after handling and clipping.
- High-contrast dial black background with white markings for fast reading.
- Luminescent needle helps confirm pressure in dim or low-light conditions.
- 1.5 in dial 38.1 mm diameter face keeps the gauge compact.
- 0 to 5000 PSI range PSI version reads 0 to 5000 PSI; BAR version reads 0 to 400 BAR.
- Oxygen clean ready for use with mixed gases.
- Air Spool and Viton O-rings standard Air Spool and Viton O-rings are supplied with the module.
- Sold without a boot metal module ships boot-less for low weight and a small form factor.
- Two dial options available in PSI (204.2308.07) or BAR (204.2309.07).
| Brand | Hollis |
| Product Type | Low-profile pressure gauge module (SPG), no boot |
| Diameter | 1.5 in (38.1 mm) |
| Pressure Range (PSI version) | 0 to 5000 PSI |
| Pressure Range (BAR version) | 0 to 400 BAR |
| Housing Material | Super hard PVD coated brass with Bourdon tube |
| Lens | Scratch-resistant plastic |
| Dial | High-contrast black face, white markings, luminescent needle |
| Fittings | Standard Air Spool and Viton O-rings included |
| O-ring Material | Viton |
| Gas Service | Oxygen clean |
| Boot | Not included (sold without boot) |
| Typical Use | Stage and deco bottles, streamlined rigging |
| Manufacturer SKU | 204.230X (204.2308.07 PSI, 204.2309.07 BAR) |
- Hollis Low Profile Pressure Gauge Module (PSI or BAR)
- Standard Air Spool
- Viton O-rings
⚠️ 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
Is the Hollis Low Profile Pressure Gauge Module oxygen clean?
Yes. Hollis lists this low-profile brass SPG as oxygen clean, and it ships with Viton O-rings and a standard Air Spool. That makes it suitable for use with mixed gases, so divers often dedicate one to a nitrox or oxygen deco bottle. Always have any gauge checked and kept clean by a qualified technician before putting it into oxygen service.
Should I choose the PSI or the BAR version?
Pick the dial that matches the rest of your gauges and your training. The PSI version (SKU 204.2308.07) reads 0 to 5000 PSI, and the BAR version (SKU 204.2309.07) reads 0 to 400 BAR. The PSI version (204.2308.07) reads 0 to 5000 PSI and the BAR version (204.2309.07) reads 0 to 400 BAR; choose the dial matching your other gauges.
Why is this gauge sold without a boot?
The module ships boot-less on purpose. The module ships boot-less, which supports the low weight and small form factor of a low-profile SPG on stage or deco bottles. The housing itself is super hard PVD coated brass, and the lens is scratch-resistant plastic.
What does the Hollis low-profile SPG come with?
The gauge module arrives with a standard Air Spool and Viton O-rings. A boot is not included. If you need help matching the spool and hose on your first stage or SPG hose, contact DiveCatalog before ordering so you get the right setup the first time.
Review summary
This is a Hollis low profile pressure gauge module with a metal housing and no boot, built for streamlined scuba rigs. It has a scratch-resistant lens, high-contrast dial and luminescent needle, a 1.5 inch dial, and a 0-5000 PSI (0-400 BAR) range. The brass body uses a hard PVD coating with a Bourdon tube, it is oxygen clean for mixed gases, and it includes an Air Spool and Viton O-rings. Written reviews are still few, though early reviewers call the dial easy to read. It suits divers assembling a compact gauge setup.
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