Ocean Reef SL35TX Din First Stage
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Ocean Reef SL35TX Din First Stage is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Ocean Reef SL35TX Din First Stage is backordered and will ship as soon as it is back in stock.
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Product Information
Ocean Reef SL35TX DIN First Stage is a balanced diaphragm scuba first stage built to pair with Ocean Reef's integrated diving masks (IDMs), featuring an anti-freeze kit, a DIN screw connection rated to 300 bar (4500 psi), and CE certification for cold water diving below 10°C.
Who it is for
This first stage suits divers running an Ocean Reef IDM setup who need a DIN regulator option, including those building a Neptune Space or Neptune III package. The balanced diaphragm design and anti-freeze kit make it a fit for divers who regularly dive in cold or variable water conditions and want adjustable intermediate pressure for consistent breathing performance.
Key details
- Chrome-plated, satin-finish brass body with a stainless steel piston and spring and a Teflon seat
- DIN screw connection rated to 300 bar (4500 psi)
- Two high-pressure ports (7/16-20 UNF) and four low/medium-pressure ports (3/8-24 UNF)
- Flow rate of approximately 4600 to 4800 l/min at 140 bar
- Static intermediate pressure of 9.5 to 9.8 bar, adjustable
- CE marked and EN 250:2014A compliant, including EU Type Examination cold-water certification for use below 10°C
- 2 years limited warranty
Compatibility and sizing
The SL35TX DIN is designed to work with Ocean Reef integrated diving masks and is offered as the DIN first stage option in Neptune Space and Neptune III packages. This is the DIN screw version rated to 300 bar; Ocean Reef also publishes an INT/Yoke version (200 to 232 bar) and a Nitrox version with Viton O-rings, so confirm which connection type your IDM setup requires before ordering.
What's in the box
- 1 Ocean Reef SL35TX DIN first stage unit
DiveCatalog.com is an authorized Ocean Reef dealer and a dive shop in Irvine, California, operating since 2003. Call or chat with us at 888-701-4017 if you have questions about fit or compatibility with your IDM mask before you buy.
- Balanced diaphragm design delivers stable intermediate pressure across depth and tank pressure changes.
- Anti-freeze kit protects the mechanism for cold-water diving operations.
- DIN screw connection rated to 300 bar (4500 psi).
- Chrome-plated, satin-finish brass body with a stainless steel piston and spring for corrosion resistance in saltwater environments.
- Teflon seat supports long-term sealing durability.
- Two high-pressure ports (7/16-20 UNF).
- Four low/medium-pressure ports (3/8-24 UNF) for second stage, octopus, and inflator hoses.
- Adjustable intermediate pressure for precise breathing performance tuning.
- Flow rate of approximately 4600 to 4800 l/min at 140 bar.
- CE marked and EN 250:2014A compliant, including cold-water (below 10°C) EU Type Examination certification.
- Built to pair with Ocean Reef integrated diving masks, including Neptune Space and Neptune III packages.
| SKU | 9923 |
| UPC | 764500000419 |
| Connection type | DIN, screw connection |
| Pressure rating | 300 bar (4500 psi) |
| Flow rate | Approximately 4600 to 4800 l/min at 140 bar |
| High-pressure ports | 2x 7/16-20 UNF |
| Low/medium-pressure ports | 4x 3/8-24 UNF |
| Intermediate pressure | 9.5 to 9.8 bar (static) |
| Body material | Chrome-plated, satin-finish brass |
| Piston/poppet material | Stainless steel |
| Spring material | Stainless steel |
| Seat material | Teflon |
| Certification | CE marked, EN 250:2014A compliant, cold water (below 10°C) rated |
| Warranty | 2 years limited |
- 1 Ocean Reef SL35TX DIN first stage unit
⚠️ 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
Does the SL35TX DIN first stage fit Ocean Reef IDM masks?
Yes. The SL35TX DIN is designed specifically to pair with Ocean Reef's integrated diving masks (IDMs) and is offered as the DIN first stage option in both the Neptune Space and Neptune III packages.
What is the difference between the DIN and INT/Yoke versions of the SL35TX?
The SL35TX DIN uses a DIN screw connection rated to 300 bar (4500 psi), while Ocean Reef also publishes an SL35TX INT/Yoke version rated to 200 to 232 bar. Confirm which connection your tank valve and IDM setup require before ordering, as Ocean Reef publishes both DIN 300 bar and INT/Yoke 200 to 232 bar versions.
Is the Ocean Reef SL35TX DIN rated for cold-water diving?
Yes. It includes an anti-freeze kit and is CE marked and EN 250:2014A compliant with EU Type Examination certification for cold-water use below 10°C.
What warranty comes with the SL35TX DIN first stage?
The Ocean Reef SL35TX DIN first stage carries a 2 year limited warranty from the manufacturer. For service intervals or warranty claims, contact DiveCatalog.com directly for guidance.
