Tusa Complete Regulator Set – RS-681 Regulator + SS-0001 Octopus + 3-Gauge Console
Tusa Complete Regulator Set – RS-681 Regulator + SS-0001 Octopus + 3-Gauge Console is backordered and will ship as soon as it is back in stock.
What's in this bundle
Tusa Complete Regulator Set – RS-681 Regulator + SS-0001 Octopus + 3-Gauge Console is backordered and will ship as soon as it is back in stock.
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Product Information
This TUSA regulator set pairs three components built to work as one system: the RS-681 regulator, the SS-0001 Safe Second octopus, and the SC-0301 three-gauge console. The RS-681 combines an ultra-compact balanced diaphragm R-600 first stage with the S-81 second stage, giving you 2 HP and 4 LP ports for mounting your other gear, a Venturi adjustment lever, and a Breathing Resistance Adjustment Control so you can fine-tune airflow to your liking. A MIFLEX hose adds flexibility on the primary second stage, and the RS-681 is eligible for the TUSA CARE Free Parts for Life Program in the USA.
The SS-0001 octopus backs up that primary regulator with a lightweight composite case that switches between left- or right-hand configuration, so you can set it up the way that's comfortable for you. It uses the same style of Venturi adjustment lever as the RS-681 and an ortho-consciously designed mouthpiece for comfortable, easy breathing on longer dives, all in a high-visibility yellow case that's easy to spot underwater.
Rounding out the set, the SC-0301 gauge console keeps your pressure, depth, and direction readings in one place. It reads air pressure with a 500 psi reserve marking, shows depth in feet, and includes a Northern Hemisphere-balanced compass, so you can plan and track a dive without adding separate instruments to your rig.
- R-600 ultra-compact balanced diaphragm first stage paired with the S-81 second stage for smooth, reliable breathing
- 2 HP and 4 LP ports on the first stage for mounting gauges, inflator, and additional hoses
- MIFLEX hose on the primary second stage adds flexibility and helps reduce snag risk
- Venturi adjustment lever and Breathing Resistance Adjustment Control let you dial in airflow on the RS-681
- SS-0001 octopus has a lightweight composite case with left- or right-hand configuration
- Ortho-consciously designed mouthpieces on both the primary and octopus second stages for comfortable, long-dive wear
- SC-0301 console combines a 500 psi pressure gauge, feet-based depth gauge, and Northern Hemisphere compass in one instrument
- RS-681 regulator is eligible for the TUSA CARE Free Parts for Life Program (USA only)
- All three pieces are TUSA components sized to work together as a complete, matched regulator setup
| Tusa RS-681 Regulator | |
| Brand | TUSA |
| Model | RS-681 |
| First Stage | Ultra-compact balanced diaphragm |
| Second Stage | S-81, elliptical low-profile case |
| HP Ports | 2 |
| LP Ports | 4 |
| Exhaust | S.E.A. Sequential Exhaust Assist (patented) |
| Venturi | Adjustment lever |
| Breathing Resistance | Adjustment control knob |
| Hose | MIFLEX flexible hose |
| Moisture Control | Built-in moisture exchange plate |
| Optional Kits | EK-600 cold water kit; DIN-R600 conversion (300 bar / 4350 psi) |
| Warranty Program | Eligible for TUSA CARE Free Parts for Life (USA only) |
| Tusa Safe Second SS-0001 High Performance Lightweight Octopus | |
| Brand | TUSA |
| Model | Safe Second SS-0001 |
| Product Type | Octopus / alternate air source |
| Case | Lightweight, compact composite |
| Orientation | Left- or right-hand configuration |
| Venturi | Adjustment lever |
| Mouthpiece | Ortho-consciously designed |
| Color | High-visibility yellow |
| Use | Alternate air source for air sharing |
| Tusa Pressure (500 Psi), Depth (Feet), & Compass (North Hem) Gauge | |
| Brand | TUSA |
| Model | SC-0301 |
| Product Type | Three-gauge console (pressure, depth, compass) |
| Pressure Units | psi |
| Reserve Marking | 500 psi |
| Depth Units | Feet |
| Compass | Northern Hemisphere balanced |
| Display | Analog dials with high-contrast markings |
| Color | Black |
- Tusa RS-681 Regulator
- Tusa Safe Second SS-0001 High Performance Lightweight Octopus
- Tusa Pressure (500 Psi), Depth (Feet), & Compass (North Hem) Gauge
Frequently Asked Questions
What is the Tusa RS-681 regulator and how does it perform?
The RS-681 pairs TUSA's compact balanced diaphragm R-600 first stage with the S-81 second stage for a lightweight, low-profile setup. It has a Venturi adjustment lever and a Breathing Resistance Adjustment Control so you can tune airflow, plus a MIFLEX hose for added flexibility. It also includes a built-in moisture exchange plate and TUSA's S.E.A. exhaust design to help manage exhaled bubbles.
How many ports does the Tusa RS-681 first stage have?
The RS-681's R-600 first stage has 2 high-pressure (HP) ports and 4 low-pressure (LP) ports, giving you room to route a dive computer, gauge console, and additional hoses.
Is the Tusa RS-681 rated for cold water diving?
TUSA offers an optional EK-600 cold water kit for the RS-681, intended for water temperatures below 50°F/10°C. That kit is a separate accessory and is not automatically included in this regulator set.
Can the Tusa RS-681 be converted to DIN?
Yes, TUSA makes a DIN-R600 conversion kit for the RS-681, rated to 300 bar/4350 psi. It is sold as an optional add-on rather than something bundled by default in this set.
What's included in the Tusa Complete Regulator Set?
This set bundles the TUSA RS-681 regulator (first and second stage), the TUSA Safe Second SS-0001 octopus, and the TUSA 3-gauge console with pressure, depth, and compass readouts, all in one order.
How does shipping and returns work for this bundle?
Orders over our free-shipping threshold ship free with next-day delivery, and the product page shows the honest, current delivery date for your order. If something isn't right, this set is covered under our standard DiveCatalog returns policy.
