You May Need These
Description
Description
The RS-790 Dive Regulator Yoke delivers consistent performance for scuba diving with a focus on reliability, durability and comfort. The R-700 first stage uses a Dry Ambient Pressure Chamber to prevent water contact with the diaphragm and spring, helping maintain steady breathing at depth in cold water.
Designed for cold-water environments, the R-700 features a ribbed top cap section that acts like a radiator to increase heat transfer. This design helps warm the critical internal parts that can freeze due to gas pressure drops and low temperatures during dives.
The system accommodates versatile air delivery with multiple ports. Two high-flow low-pressure ports are complemented by two standard LP ports and two HP ports, positioned near the diaphragm to offer up to a 15% increase in air flow for easier breathing during demanding dives.
The S-90 second stage is pneumatically balanced, reducing inhalation resistance and providing smooth breathing under varying conditions. A built-in Venturi adjustment lever offers two positions: Surface or minimum for entry on the surface to minimize free flow, and Dive or maximum for heightened airflow during the dive.
Features
Features
- R-700 First Stage with Dry Ambient Pressure Chamber. The dry chamber prevents water contact with the diaphragm and spring, maximizing performance at depth in cold water conditions below 50°F/10°C.
- Ideal For Cold Water Environments. Ribbed top cap increases heat transfer to warm internal parts and reduce freezing risk.
- High Flow Ports. Two high-flow LP ports plus two standard LP ports and two HP ports, positioned near the diaphragm to boost air flow by up to 15%.
- S-90 Second Stage. Pneumatically balanced system for decreased inhalation resistance and smoother breathing across conditions.
- Venturi Adjustment Lever. Two-position control for surface/min and dive/max settings to manage airflow and prevent unwanted free flow.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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
How often does a scuba regulator need servicing?
Follow the interval in your regulator's manual, since manufacturers commonly specify an annual inspection or a set number of dives and many warranties depend on it. A regulator is life-support equipment, so service belongs with a factory-trained technician rather than being attempted at home. Have it looked at sooner than scheduled if you notice increased breathing effort, free-flow, bubbles, or water in the second stage.
How do I rinse and care for a regulator after diving?
Make sure the dust cap is dry and firmly seated over the first-stage inlet before the regulator goes anywhere near water, because water inside the first stage is the leading cause of internal corrosion. Rinse in fresh water without pressing the purge button, since purging while depressurized can draw water back into the second stage. Shake out the water and hang it to dry with the hoses in wide, gentle loops rather than tight bends.
Can I fly with a scuba regulator?
Regulators travel well and are usually best carried in hand luggage where they will not be crushed or lost. A regulator holds no gas of its own, so there is nothing inherently problematic about it on an aircraft, though the airline and security screeners always have the final say. Pack it dry with the dust cap in place, in a padded regulator bag or wrapped in soft gear.
Can I use my regulator with nitrox?
Many modern regulators are supplied as suitable for nitrox mixes up to 40 percent oxygen, which is the widely used recreational industry standard, while anything above that requires dedicated oxygen-clean equipment and procedures. Confirm what your specific regulator's manual states, and follow your nitrox training and your fill station's requirements. Never assume a regulator is oxygen-service clean simply because it looks clean or is new.
What is the difference between DIN and yoke regulators?
A yoke (A-clamp) fitting clamps over the tank valve and is the most common connection across much of the recreational world, while a DIN fitting screws into the valve and is standard in much of Europe and in technical diving. DIN captures the o-ring inside the threads, which many divers consider more secure, but yoke is often what rental cylinders provide. Adapters exist in both directions, so check what is used where you dive before deciding.
What is the octopus regulator for?
The octopus is your backup second stage, carried so you can share air with a buddy who is out of gas, or breathe from it yourself if your primary fails or free-flows. It is normally on a longer, brightly colored hose so it is easy to find and hand over under stress. Secure it in the triangle between your chin and the bottom of your rib cage so it is instantly accessible and not dragging through sand or coral.
How should I store a regulator between dive trips?
Store it fully dry, out of sunlight, with the dust cap in place and the hoses in wide loops rather than tightly coiled. Avoid hanging it by the second stages for long periods, which stresses the hose fittings; laying it flat in a padded bag or hanging it by the first stage is kinder. If it has sat unused for a long stretch, have it checked before your next trip rather than assuming it is ready to dive.
