SHERWOOD MAXIMUS PRO
$772.90
After years of development, engineering and design the MAXIMUS is back. A high performance regulator built to withstand the rigors of the cold and the deep. The MAXIMUS brings with it the most recognizable and unique features that its predecessor carried: the Under Arm Swivel with an extended 41 inch hose, and the extremely comfortable Wisdom Mouthpiece. But this regulator also has several new features that make this regulator unique, such as a One-Touch Adjustment, a SMART Demand Lever, a High Performance Valve Design, and an oversized purge cover. New powerful and edgy cosmetics will give the Maximus a leg up on all the competition.
Scroll down for more information.
Scroll down for more information.
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1st stage: To keep the internal parts of the MAXIMUS PRO free from dirt, that can cause it to malfunction, it is completely environmentally sealed. The piston/spring chamber is surrounded by a membrane. This membrane doesn't move the piston like a diaphragm design 1st stage would, it's purpose is solely to seal the chamber without using sticky grease or oils while allowing the air pressure inside the chamber to adjust according to the ambient pressure, thus adjusting spring tension and creating a balanced 1st stage. A pneumatically balanced regulator ensures you get the same amount of air delivered whether you are at 3,000 psi or 500 psi thus improving the diving experience.
Our personal note: all SHERWOOD regulators except the SR2 have the same 1st stage.
2nd stage: The MAXIMUS PRO features a SMART Demand Lever - the orifice is not screwed into its base, it can move. The sharp edge of the orifice is the part that is sealing against the teflon seat of the 2nd stage when you are not inhaling to stop the airflow. In common systems, when the reg is not used, these 2 parts are resting against each other, meaning the sharp edge of the orifice is cutting into the seat.
With the MAXIMUS PRO these 2 parts don't rest on each other and the seat doesn't get used while in storage. Only when you turn on the tank (put air in the system) the flow of air will push the orifice against the seat, creating the seal.
Wisdom Mouthpiece: the longer co-molded mouthpiece allows your molars and wisdom teeth to hold onto the 2nd stage, using your larger teeth to hold onto the regulator reduce jaw fatigue. Additionally, the mouthpiece uses two different silicones with a soft black silicone under your lips but a firmer color tabs that provide tremendous comfort.
One-Touch Adjustment- Like the SR2, the Maximus has only one adjustment which uses a large easy to use knob which adjusts both flow and Venturi effect.
The 2nd stage is attached with a swivel to a 41" hose to route the hose comfortable underneath the arm, being out of the way and streamlined.
Average work of breathing less than 0.75 J/L (@ RMV = 62.5 l/min, depth = 50 m, service pressure = 50 bar) - Designed for cold water diving and Nitrox ready up to 40%
1st stage- Body material: marine-grade, chrome-plated brass
- Mechanically balanced flow-through piston
- Environmentally sealed
- 2 HP ports, 3/8" thread
- 4 LP ports, 7/16" thread
- Available in INT (DIN conversion kit available here)
- Weight INT: 2lbs/910g
2nd stage- Air-balanced
- Casing material: glass-filled polyamide
- Valve housing (barrel) material: plastic
- One-touch performance adjustment (2-in-1 inhalation effort and venturi system)
- SMART Demand Lever
- Anodized aluminium heat sink
- Average work of breathing less than 0.75 J/L
Service interval: 12 months -
Ships within: 1-4 business days.
All SHERWOOD SCUBA 1st and 2nd stages are covered by a 2 years limited manufacturer's warranty and participate in the "parts for lifetime" program. Restrictions apply (valid for original owner and at regular service intervals)!
Useful links:
SHERWOOD SCUBA's product registration
Related Items
SHERWOOD BLIZZARD PRO
$202.00
THE SHERWOOD BLIZZARD has been a standard for divers in cold waters for the last 30 years. It has been the “go to” regulator for many Public Safety Dive Teams around the country because of its reliability in the colder waters and for its ease of service. In the summer of 2016 SHERWOOD introduced the new BLIZZARD PRO. The new unit has proven to be as reliable in all environments. With a completely new Valve Design, the new Blizzard Pro comes with improved breathing performance and enhanced cosmetics.Scroll down for more information.
ZEAGLE F8
$899.95
- In partnership with Atomic Aquatics, ZEAGLE engineered over 20 different improvements on everything from inner mechanisms and materials to exterior controls and aesthetics. The F8 breathes better, works harder and lasts longer than any other regulator they’ve ever made.
1st stage: The F8 1st stage has a dry-sealed spring chamber (to stop freezing at water temperatures below 40 degrees F). All delicate parts of the 1st stage including the main spring are sealed behind the clear hydrostatic diaphragm away from the effects of salt or other contaminants in the water, making it environmentally sealed. It is very low in profile, barely extending above the tank valve, and places the low pressure hoses directly out to the sides, in a pattern preferred by many divers.
New Neoflon seat: The conical precision high-pressure valve provides much greater reliability and service life compared to conventional designs, while improving responsiveness and performance at all breathing rates.
Work of breathing at heavy* demand: 0.72 Joule/Liter *198 (60M) depth, 750 psi inlet, 62.5 RMV (liters per minute respiratory volume)
Like all Zeagle regulators, The Flathead-8 comes factory ready for use with EAN/ NITROX to 40% O2. -
2nd stage: A new inhalation diaphragm provides superior tear strength and improved response time to breathing (super soft silicone molded over a low friction disk). The improved exhaust valve ensures dryness and a lower exhalation effort.
Another revolutionary difference to most regulators is the seat-saving orifice. It is not screwed into its base, it can move. The sharp edge of the orifice is the part that is sealing against the teflon seat of the 2nd stage when you are not inhaling to stop the airflow. In common systems, when the reg is not used, these 2 parts are resting against each other, meaning the sharp edge of the orifice is cutting into the seat.
With the F8 these 2 parts don't rest on each other and the seat doesn't get used while in storage. Only when you turn on the tank (put air in the system) the flow of air will push the orifice against the seat, creating the seal.
The seat is made of soft silicone molded over a metal insert to deliver the firmness required for an airtight seal while maintaining the necessary elasticity to prevent leaking.
Redesigned front cover and inhalation effort control knob use co-molded components that provide the necessary grip, soft touch and ease of use.
The redesigned heat sink dramatically increases surface area thus aiding in the heat exchange necessary to avoid freeze-up. In addition the heat sink and inlet tube are zirconium-plated for superior corrosion resistance.
Several color kits are available for the F8 2nd stage to perfectly match your gear or mark different gasses. - Designed for cold water diving and Nitrox ready up to 40%
1st stage- Body material: marine-grade brass with black satin chrome finish
- Seat material: precision machined neoflon (PCTFE)
- Air-balanced diaphragm design
- Environmentally sealed
- 2 HP ports
- 5 LP ports
- Available in INT and DIN 300
- Weight: 1.2lbs/545g (DIN)
2nd stage- Air-balanced downstream valve
- Casing material: nylon 12
- Valve housing (barrel) material: 316 stainless steel
- Inhalation effort adjustment knob
- Venturi system (dive/pre-dive switch)
- Redesigned heat sink
- Compact and light design
- Colour kits available in: aqua, black, blue, pink, purple and red
Service interval: 12 months - Ships within: 1-4 business days.
All Zeagle regulators are covered by a limited lifetime warranty and include free parts for your annual service. Restrictions apply (valid for original owner and at regular service intervals)! For more details check Zeagle's warranty page.
Useful links:
ZEAGLE warranty
ZEAGLE product registration
ZEAGLE product manuals
ZEAGLE F8 2nd stage
$329.95
- The ZEAGLE F8 is a balanced 2nd stage made for diving in cold water.
The redesigned heat sink dramatically increases surface area thus aiding in the heat exchange necessary to avoid freeze-up. In addition the heat sink and inlet tube are zirconium-plated for superior corrosion resistance.
A new inhalation diaphragm provides superior tear strength and improved response time to breathing (super soft silicone molded over a low friction disk). The improved exhaust valve ensures dryness and a lower exhalation effort.
Another revolutionary difference to most regulators is the seat-saving orifice. It is not screwed into its base, it can move. The sharp edge of the orifice is the part that is sealing against the teflon seat of the 2nd stage when you are not inhaling to stop the airflow. In common systems, when the reg is not used, these 2 parts are resting against each other, meaning the sharp edge of the orifice is cutting into the seat.
With the F8 these 2 parts don't rest on each other and the seat doesn't get used while in storage. Only when you turn on the tank (put air in the system) the flow of air will push the orifice against the seat, creating the seal.
The seat is made of soft silicone molded over a metal insert to deliver the firmness required for an airtight seal while maintaining the necessary elasticity to prevent leaking.
Redesigned front cover and inhalation effort control knob use co-molded components that provide the necessary grip, soft touch and ease of use.
Several color kits are available for the F8 2nd stage to perfectly match your gear or mark different gasses. -
- Air-balanced
- Casing material: nylon 12
- Valve housing (barrel) material: 316 stainless steel
- Inhalation effort adjustment knob
- Venturi system (dive/pre-dive switch)
- Redesigned heat sink
- Compact and light design
- Comes with 30" flex-hose
- Nitrox ready up to 40%
- Service Interval: 12 months
- Warranty: limited lifetime warranty
- Colour kits available in: aqua, black, blue, pink, purple and red
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Ships within: 1-4 business days. This item qualifies for free shipping within Canada! Restrictions apply, but very few. Please check our shipping policies for details.
Useful links:
ZEAGLE warranty
ZEAGLE product registration
ZEAGLE product manuals
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