Scubapro MK 25 Evo / S620TI Dive Regulator System
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.
Scubapro MK 25 Evo / S620TI Dive Regulator System - Standard / DIN is backordered and will ship as soon as it is back in stock.
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Product Information
The Scubapro MK 25 Evo / S620TI Dive Regulator System is available in 3 configurations. Select a configuration above to shop it, or expand each section below for that configuration's full features and specs.
Standard — features & specs
The SCUBAPRO MK25 EVO/S620Ti Dive Regulator System is an all-purpose, all-weather first and second stage set that pairs the MK25 EVO air-balanced flow-through piston first stage with the smaller, lighter S620 Ti second stage. It is rated for nitrox mixes up to 40% and is published in both an INT (yoke) version, item 12.620.000, and a DIN 300 version, item 12.620.300.
Who it is for
This system is for the diver who wants one regulator that handles everything from warm-water recreational dives to cold-water exploration. The MK25 EVO contributes resistance to freezing, inhalation sensitivity and instant delivery of air on demand, helped by the patented XTIS (Extended Thermal Insulating System) that thermally insulates the inner mechanism and by anti-freeze protection that increases breathing reliability. Divers coming from the S600 get the same-sized diaphragm in a smaller, lighter casing with a full titanium inlet tube.
Key details
- First stage: air-balanced flow-through piston in a chrome-plated brass body, with two opposing high pressure ports and five low pressure ports (four high-flow plus one axial super high-flow) on a swivel turret.
- External intermediate pressure adjustment lets a technician fine-tune performance.
- Second stage: titanium valve housing and components, reinforced technopolymer casing, stainless steel cover frame, diver-adjustable inhalation effort knob and adjustable VIVA lever.
- Compact Hi-Flow mouthpiece exclusive to the S620 Ti, a large purge button for better water circulation and a reengineered exhaust tee that keeps bubbles out of your field of view.
- Dimensions 9.06 in long by 7.09 in wide by 3.15 in high. Weight is 2.579 lb for the INT version and 2.114 lb for the DIN 300 version.
Compatibility and sizing
Choose INT (yoke) for standard A-clamp cylinder valves or DIN 300 to thread directly into a DIN valve. Both are approved for nitrox mixes up to 40%. All SCUBAPRO regulators are backed by a limited lifetime warranty.
DiveCatalog.com is an authorized Scubapro dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help choosing between the INT and DIN 300 versions or checking hose and accessory compatibility.
Color Mouthpiece & Hose Kit - Yoke (INT) — features & specs
The Scubapro MK25 EVO YOKE INT S620Ti Dive Regulator with Mouthpiece Hose Protector is a complete first and second stage regulator system (SCUBAPRO item 12.620.000) that pairs the air balanced flow-through piston MK25 EVO first stage in chrome-plated brass with the titanium-barreled S620 Ti second stage, in an INT (Yoke) tank connection and approved for nitrox mixes up to 40%. SCUBAPRO states the MK25 EVO offers excellent resistance to freezing, superb inhalation sensitivity and instant delivery of air on demand.
Who it is for
This system suits divers who want high-airflow, performance-oriented breathing across cold, temperate and warm water. The patented XTIS (Extended Thermal Insulating System) and anti-freeze protection target cold-water diving, while the compact, lightweight S620 Ti second stage with its diver-adjustable inhalation knob and VIVA lever lets you tune breathing effort dive by dive. Because the connection is INT (Yoke), it attaches to yoke tank valves; SCUBAPRO publishes the DIN build separately. Nitrox divers can use it with mixes up to 40%.
Key details
- First stage: air balanced flow-through piston, chrome-plated brass body, 2 opposing HP ports, 5 LP ports (four high-flow plus one axial super high-flow) on a swivel turret, external intermediate pressure adjustment.
- Second stage: S Series, air balanced valve, full titanium barrel and titanium valve housing, reinforced technopolymer case with stainless steel cover frame, large diaphragm in a compact casing, compact Hi-Flow mouthpiece on an enlarged mouthpiece pipe.
- System: 9.06 x 7.09 x 3.15 in, 2.579 lb, backed by SCUBAPRO's limited lifetime warranty on regulators.
Compatibility and sizing
INT (Yoke) tank valve connection; SCUBAPRO publishes the DIN 300 build as a separate item, 12.620.300. Nitrox up to 40%. This listing is offered with a mouthpiece and hose protector sleeve kit in Yellow, White, Blue, Red or Pink, selected by variant.
What's in the box
- MK25 EVO/S620Ti regulator system, first and second stage
- 4 mm allen key (43.021.000)
- Owner's manual (45.101.180)
- Mouthpiece and hose protector sleeve kit in the selected color
DiveCatalog.com is an authorized Scubapro dealer and a real dive shop in Irvine, California since 2003. Call or chat with us if you want help confirming yoke versus DIN, port routing or color selection before you order.
Color Mouthpiece & Hose Kit - DIN — features & specs
The Scubapro MK25 EVO DIN 300/S620 Ti Dive Regulator with Mouthpiece & Hose Protector is an all-purpose, all-weather regulator system that pairs the MK25 EVO air-balanced flow-through piston first stage with the air-balanced S620 Ti second stage, uses a DIN 300 screw-in connector, weighs 2.114 lb as a complete system and is rated for nitrox mixes up to 40%. This configuration ships with a color-coordinated mouthpiece and hose protector in your choice of Purple, Red, Yellow, White, Pink or Orange.
Who it is for
It suits divers who want one regulator for cold, temperate and warm water. The patented XTIS (Extended Thermal Insulating System) and anti-freeze protection target extreme cold-water reliability, while the DIN 300 screw-in connector is compact and streamlined. The colored mouthpiece and hose protector also help divers identify their own regulator or mark a specific gas mix on a multi-regulator setup.
Key details
- First stage: air-balanced flow-through piston in a chrome-plated brass body, airflow unaffected by depth, tank pressure or breathing rate.
- Ports: 2 opposing high-pressure ports and 5 low-pressure ports on a swivel turret (4 high-flow, 1 super high-flow).
- Externally adjustable intermediate pressure for technician tuning.
- Second stage: S Series air-balanced valve with easy-grip diver-adjustable inhalation knob, VIVA lever and Hi-Flow mouthpiece.
- Second stage build: reinforced technopolymer casing, stainless steel cover frame and titanium valve housing.
- Dimensions: 9.06 in L x 7.09 in W x 3.15 in H. Nitrox up to 40%.
What's in the box
- MK25 EVO DIN 300/S620 Ti regulator system
- Color-coordinated mouthpiece and hose protector in the selected color
- 4 mm Allen key
- Product manual
DiveCatalog.com is an authorized Scubapro dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help choosing DIN versus yoke, a color, or hose routing for your setup.
⚠️ 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
ScubaPro MK25 EVO vs MK17 EVO2: which first stage should I choose?
The MK25 EVO is a balanced piston first stage — it delivers the highest airflow and instant response, and it is the choice of many performance-focused and warm-to-cold water divers. The MK17 EVO2 is a sealed diaphragm first stage — its internals are isolated from water, which makes it the traditional pick for very cold water and silty or salty conditions with less maintenance sensitivity. Both are excellent; choose the MK25 EVO for maximum performance and adjustability, the MK17 EVO2 for a fully sealed set-and-forget workhorse.
Should I order my ScubaPro regulator in DIN or yoke?
Yoke (INT) is the most common fitting on rental tanks in North America and the Caribbean, so it is the simplest choice if you mostly dive at resorts. DIN screws directly into the tank valve, is rated for higher pressures, and is standard in Europe and technical diving — and a DIN regulator can use a simple adapter on yoke tanks, which makes DIN the more flexible long-term choice for traveling divers. ScubaPro sells both versions, and a yoke regulator can later be converted to DIN by an authorized dealer using a genuine ScubaPro conversion kit (DIN owners going the other way simply use a DIN-to-yoke adapter — no conversion needed).
What is the difference between the MK25 EVO and the original MK25?
The EVO generation added ScubaPro's XTIS (Extended Thermal Insulating System), which improves freezing resistance in cold water, along with updated materials and finishes. The core balanced-piston design that made the MK25 famous is unchanged — the EVO is the same performance with better cold-water protection.
Is the S620Ti second stage good for cold water, and what does the Ti mean?
Ti refers to the S620Ti's titanium components — the inlet tube and barrel are full titanium, making the second stage ultralight and highly corrosion-resistant, housed in a rugged fiber-reinforced technopolymer casing. It is the successor to ScubaPro's legendary S600: smaller and lighter, but with the same-size diaphragm for effortless airflow in all conditions. Paired with the MK25 EVO first stage, the system is cold-water rated.
How often does a ScubaPro regulator need service?
ScubaPro's official recommendation is a full service by an authorized ScubaPro technician every 2 years or 100 dives, whichever comes first. If you dive heavily (100+ dives a year), ScubaPro recommends an inspection every 6 months and an overhaul annually. Staying on schedule also keeps you eligible for ScubaPro's Parts For Life program — free service parts for the original owner when the regulator is registered and purchased as part of a qualifying package from an authorized dealer. As an authorized ScubaPro dealer, we can help with registration and service when it is due.
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.
What comes in the box with the MK25 EVO/S620Ti regulator system?
The box contains the MK25 EVO/S620Ti first and second stage system in your chosen connection, either INT or DIN 300, plus a 4 mm Allen key (part 43.021.000) and the English manual (part 45.101.180). It is a two-stage set, so a submersible pressure gauge, octopus and hoses are separate items.
How many HP and LP ports does the MK25 EVO first stage have?
The MK25 EVO has two high pressure ports and five low pressure ports. The two HP ports are opposing, so the first stage can be positioned up or down to suit your hose routing. The five LP ports sit on a swivel turret and consist of four high-flow ports plus one axial super high-flow port.
How much does the MK25 EVO/S620Ti weigh, and does DIN or INT weigh less?
Weight depends on the connection. Scubapro publishes 2.114 lb for the DIN 300 version, item 12.620.300, and 2.579 lb for the INT yoke version, item 12.620.000, so the DIN build is the lighter of the two. The system measures 9.06 in long, 7.09 in wide and 3.15 in high.
Is the MK25 EVO/S620Ti covered by a warranty?
Yes. All Scubapro regulators, including the MK25 EVO/S620Ti system, are backed by a limited lifetime warranty.
