Scubapro MK25 EVO/S620Ti Dive Regulator System + ScubaPro Sport Bag 125 Roller
Scubapro MK25 EVO/S620Ti Dive Regulator System + ScubaPro Sport Bag 125 Roller is backordered and will ship as soon as it is back in stock.
What's in this bundle
Scubapro MK25 EVO/S620Ti Dive Regulator System + ScubaPro Sport Bag 125 Roller is backordered and will ship as soon as it is back in stock.
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Product Information
The Scubapro MK25 EVO/S620Ti Dive Regulator System is an all-purpose scuba regulator set that pairs the MK25 EVO air-balanced piston first stage with the titanium-housed S620 Ti second stage, rated for nitrox mixes up to 40 percent, and this package adds the SCUBAPRO Sport Bag 125 roller duffel for gear transport. It is built for divers who want consistent airflow in all water temperatures from a single primary regulator.
Who it is for
This system suits recreational and travel-minded divers who dive warm and cold water with the same regulator, including those diving nitrox up to 40 percent. The MK25 EVO's XTIS thermal insulation and anti-freeze protection support cold-water use, while the titanium valve housing and reinforced technopolymer case keep the second stage light and corrosion resistant. The 125 liter roller bag carries the full kit to the boat, the pool or the airport.
Key details
- MK25 EVO first stage: air-balanced piston, chrome-plated brass body, external intermediate pressure adjustment.
- Ports: 2 opposing HP ports and 5 LP ports (4 high-flow plus 1 super high-flow axial) on a swivel turret.
- S620 Ti second stage: air-balanced valve, diver-adjustable inhalation knob, VIVA lever, stainless steel cover frame, compact Hi-Flow mouthpiece.
- Regulator dimensions 9.06 x 7.09 x 3.15 in, weight 2.579 lb.
- Sport Bag 125: 600 Denier Polyester/PU, 125 liters (33 gallons), 31.5 x 17.72 x 12.99 in, 5.723 lb, denim blue.
- All SCUBAPRO regulators are backed by a limited lifetime warranty.
Compatibility and sizing
This bundle is built around item 12.620.000, the INT (Yoke) connector version in black. SCUBAPRO also publishes the same system with a DIN connector as item 12.620.300. The regulator is approved for nitrox up to 40 percent as supplied.
What's in the box
- MK25 EVO/S620Ti regulator system
- 4mm Allen key
- Product manual (English)
- SCUBAPRO Sport Bag 125 roller bag
DiveCatalog.com is an authorized Scubapro dealer and a real dive shop in Irvine, California since 2003. Call or chat with us if you need help choosing between Yoke and DIN or confirming hose and octopus compatibility.
- Air-balanced piston first stage MK25 EVO delivers consistent airflow regardless of remaining tank pressure.
- Cold-water protection XTIS thermal insulation system plus anti-freeze protection for cold-water diving.
- Chrome-plated brass body durable first stage construction with external intermediate pressure adjustment for technician fine-tuning.
- Flexible hose routing 2 opposing HP ports and 5 LP ports (4 high-flow plus 1 super high-flow axial) on a swivel turret.
- Titanium second stage housing S620 Ti uses a full titanium valve housing for light weight and corrosion resistance.
- Reinforced technopolymer case finished with a stainless steel cover frame on the S620 Ti.
- Air-balanced second stage valve smooths inhalation effort across varying depths and pressures, with a large diaphragm inside a compact casing.
- Diver-adjustable breathing inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) lever on the S620 Ti.
- Hi-Flow mouthpiece compact mouthpiece on an enlarged mouthpiece pipe for easy airflow.
- Nitrox ready approved for use with nitrox mixes up to 40 percent as supplied.
- Sport Bag 125 included 125 liter (33 gallon) roller duffel in 600 Denier Polyester/PU with U-shaped YKK Vislon double-slider opening, two long zippered interior pockets and reinforced bottom wear patches.
- Travel-friendly bag design saltwater-resistant changeable wheels, tuck-away backpack straps, top and bottom handles, double duffel straps with padded connector, and it folds compactly when empty.
| System | MK25 EVO first stage + S620 Ti second stage |
| Connector Type (item 12.620.000) | INT (Yoke) |
| DIN Version Item Number | 12.620.300 |
| First Stage Type | Air-balanced piston |
| First Stage Material | Chrome-plated brass body |
| Thermal Protection | XTIS thermal insulation system, anti-freeze protection |
| HP Ports | 2 opposing ports |
| LP Ports | 5 (4 high-flow + 1 super high-flow axial on swivel turret) |
| Second Stage Series | S Series |
| Second Stage Valve Housing | Titanium |
| Second Stage Case | Reinforced technopolymer with stainless steel cover frame |
| Second Stage Controls | Adjustable inhalation effort knob, VIVA lever |
| Nitrox Mix | Up to 40% |
| Regulator Length | 9.06 in |
| Regulator Width | 7.09 in |
| Regulator Height | 3.15 in |
| Regulator Weight | 2.579 lb |
| Bag Model / Item Number | Sport Bag 125 / 53.123.260 |
| Bag Volume | 125 liters (33 gallons) |
| Bag Dimensions | 80 x 45 x 33 cm (31.5 x 17.72 x 12.99 in) |
| Bag Material | 600 Denier Polyester/PU, black interior lining |
| Bag Color | Denim blue |
| Bag Weight | 2.480 kg (5.723 lb) |
| Bag Zipper | YKK Vislon double-slider, U-shaped opening |
| Warranty | Limited lifetime warranty on SCUBAPRO regulators |
- MK25 EVO/S620Ti regulator system
- 4mm Allen key
- Product manual (English)
- SCUBAPRO Sport Bag 125 roller bag
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.
Is this MK25 EVO/S620Ti bundle a Yoke or DIN regulator?
This package is built around item 12.620.000, which is the INT (Yoke) connector version in black. SCUBAPRO also publishes the same MK25 EVO/S620Ti system with a DIN connector under item 12.620.300. If you dive in a region or on tanks that require DIN, contact us before ordering so we can confirm which connector configuration you need.
What makes the S620 Ti second stage different?
The S620 Ti uses a full titanium valve housing for light weight and corrosion resistance, set in a reinforced technopolymer case with a stainless steel cover frame. Its air-balanced valve smooths inhalation effort at varying depths and pressures, a large diaphragm sits inside a compact casing for sensitivity, and the diver can tune breathing with an inhalation effort knob and the VIVA lever.
How much gear does the included Sport Bag 125 hold?
The Sport Bag 125 has a 125 liter (33 gallon) main compartment and measures 80 x 45 x 33 cm (31.5 x 17.72 x 12.99 in), with an empty weight of 2.480 kg (5.723 lb). It is made of 600 Denier Polyester/PU with a U-shaped YKK Vislon double-slider opening, two long zippered interior pockets, reinforced bottom wear patches and saltwater-resistant changeable wheels.
Can the MK25 EVO be used in cold water?
Yes. The MK25 EVO first stage is built with SCUBAPRO's XTIS thermal insulation system and anti-freeze protection, and the system is described by the manufacturer as an all-purpose setup for all water temperatures. Its air-balanced piston design keeps airflow consistent regardless of remaining tank pressure, and an external intermediate pressure adjustment lets a technician fine-tune performance.

















