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U.S. DARKWATER LLC
DRYSUIT DIVING SERVICES

U.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICES
Home
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  • Drysuit Services/Repairs
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U.S. DARKWATER LLC
DRYSUIT DIVING SERVICES

U.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICES
  • Home
  • Menu
    • Drysuit Services/Repairs
    • Full Face Masks
    • Drysuits - Public Safety
    • Drysuits - Military
    • Drysuits - Commercial
    • Drysuits - Tec/Rec
    • Drysuits - Water Rescue
    • Drysuits - Ice Rescue
    • Drysuit Undergarments
    • Cylinders
    • BCDs
    • BCD Accessories
    • Tank Accessories
    • Backplates
    • Harnesses
    • Masks/Snorkels/Fins
    • Dive Lights
    • Regulators & accessories
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  • Gallery

TANK ACCESSORIES

TANK VALVES

XS Scuba Deluxe K

 

  • Standard yoke outlet
  • 3/4”-14 NPSM standard inlet threads
  • Air service only
  • 1.5 handwheel rotations from fully on to fully off

XS Scuba PRO

 

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • 3/4”-14 NPSM standard inlet threads
  • Clean for pre-blended Nitrox up to 40% oxygen
  • 1.5 handwheel rotations from fully on to fully off
  • Available in 3 service pressures

XS Scuba PRO 1/2"-14 NGT Threads

 

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • 1/2”-14 NGT (National Gas Thread) tapered inlet threads
  • Seals to cylinder with PTFE tape, not an O-ring
  • Clean for pre-blended Nitrox up to 40% oxygen
  • 1.5 handwheel rotations from fully on to fully off

XS Scuba PVD PRO

 

  • Mil-Spec black PVD finish
  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • 3/4”-14 NPSM standard inlet threads
  • Clean for pre-blended Nitrox up to 40% oxygen
  • 1.5 handwheel rotations from fully on to fully off
  • Available in two service pressures

XS Scuba Modular PRO

  

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • Modular access plug included
  • 3/4”-14 NPSM standard inlet threads
  • Clean for pre-blended Nitrox up to 40% oxygen
  • 1.5 handwheel rotations from fully on to fully off
  • Available in 2 service pressures

XS Scuba 7/8"-14 UNF DIN Valve

 

  • Dedicated 300 bar DIN outlet
  • Attachment of DIN first stages only
  • 7/8”-14 UNF standard inlet threads
  • Air service only
  • 1.5 handwheel rotations from fully on to fully off
  • Can be used on 3500 psi old HP steel cylinders (must change safety)

XS Scuba Isolation PRO Manifold

  • PRO outlet, with spin-out insert, for DIN or yoke connection
  • XS Scuba Safety Handwheel 
  • Center-to-center distance: 215 mm (8.46 in) +/- 5 mm (0.2 in)
  • 3/4”-14 NPSM standard inlet threads
  • On/Off seat built from high strength brass with nylon seat and PTFE plated 
  • One-piece safety assembly protected within the body of the valve
  • O-ring sealed bonnet
  • Modular access plugs (R/L) included for use as single valves
  • Screw-in dip tube with hex wrench tighten feature
  • Meets the requirements of CGA V9-2009 standards

XS Scuba Crossbar with Isolator

 

  • Connects right & left modular valves together to build a XS Scuba isolation manifold
  • Center-to-center distance: 215 mm (8.46 in)
  • Double barrel Viton O-ring seal
  • Clean for pre-blended Nitrox up to 40% oxygen

Thermo Deluxe K

 

Quality, dependability and reputation have made this valve the most popular, widely-used valve for scuba cylinders in the world. The Thermo K valve is used by more dealers, resorts and boat operators than any other valve. Trust the valve the professionals use.

  • Standard yoke outlet
  • 3/4”-14 NPSM standard inlet threads
  • Air service only 

Thermo PRO

 

If you plan to use Nitrox (up to EAN40) or if you need to switch between yoke and DIN regulators, then the Thermo PRO valve is the valve for you. It is pre-cleaned and ready for any adventure.

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • 3/4”-14 NPSM standard inlet threads
  • Clean for pre-blended Nitrox up to 40% oxygen
  • Available in four service pressures

Thermo DIN

 

The Thermo DIN valve is for those divers who use a dedicated 300 bar regulator on all their dives. This is the valve for those who go all DIN all the time.

  • Dedicated 300 bar DIN outlet
  • Attachment of DIN first stages only
  • 3/4”-14 NPSM standard inlet threads
  • Air service only
  • Available in two service pressures

Thermo Modular PRO

 

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • Modular access plug included
  • 3/4”-14 NPSM standard inlet threads
  • Clean for pre-blended Nitrox up to 40% oxygen
  • Available in 2 service pressures

Thermo Modular DIN

 

  • Dedicated 300 bar DIN outlet
  • Attachment of DIN first stages only
  • Modular access plug included
  • 3/4”-14 NPSM standard inlet threads
  • Air service only
  • Great for sidemount
  • Available in 2 service pressures

Thermo Standard Crossbar with Isolator

 

  • Connects right & left modular valves together to build a Thermo Isolation Manifold
  • Center-to-center distance: 215 mm (8.46 in)
  • Double barrel O-ring seal
  • Clean for pre-blended Nitrox up to 40% oxygen

Thermo Isolation Manifold - PRO

  • PRO - DIN/Yoke w/removable spin-out insert
  • Center-to-center distance: 215 mm (8.46 in) +/- 5 mm (0.2 in)
  • 3/4”-14 NPSM standard inlet threads
  • High gas flow 
  • On/Off seat built from brass with nylon seat and PTFE plated 
  • One-piece safety assembly protected within the body of the valve
  • Traditional copper crush washer sealed bonnet
  • Modular access plugs (R/L) included for use as single valves
  • Screw-in dip tube with hex tighten feature
  • Meets requirements of CGA V9-2009 standards
  • Available in 2 service pressures

Thermo Isolation Manifold - DIN

  •  DIN - Dedicated 300 bar
  • Center-to-center distance: 215 mm (8.46 in) +/- 5 mm (0.2 in)
  • 3/4”-14 NPSM standard inlet threads
  • High gas flow 
  • On/Off seat built from brass with nylon seat and PTFE plated
  • One-piece safety assembly protected within the body of the valve
  • Traditional copper crush washer sealed bonnet
  • Modular access plugs (R/L) included for use as single valves
  • Screw-in dip tube with hex tighten feature
  • Meets the requirements of CGA V9-2009 standards
  • Available in 2 service pressures

Thermo PRO H Adapter

 

  • Standard yoke outlet with spin-out DIN insert converts to 230 bar DIN outlet
  • Attaches to all Thermo Modular valves
  • Attaches to all XS Scuba Modular valves
  • Right hand H adapter attaches to right hand modular valve
  • Left hand H adapter attaches to left hand modular valve
  • Clean for pre-blended Nitrox up to 40% oxygen


TANK STRAPS, BANDS AND ADAPTERS

Highland Twin Cylinder Bands

  

  • Precision manufactured to the exact specifications of Joe McGrath’s original Highland Millwork bands
  • Deburred and polished edges to protect your cylinder paint/finish
  • 18 gauge (.048 in) 304 grade stainless steel
  • Polished fusion welds
  • Polished #4 stainless steel finish
  • Final finish completed by hand
  • The only choice of experienced technical divers
  • Available in two sizes
    • 7.25 in (184 mm), includes Bolt Kit BK725
    • 8.00 in (203 mm), includes Bolt Kit BK800

Highland Stage Bottle Strap Kits

 

Includes:

  • 2 ea. 4 in (101 mm) jumbo stainless steel bolt snaps
  • 1 in (25 mm) wide, adjustable length, nylon webbing handle
  • 11 in (279 mm) piece of black tubing to create a comfortable carry handle
  • Rugged, elastic EPDM hose retainer with easy grip tab
  • Marine grade stainless steel cylinder clamp
  • Nylon tube webbing to cover cylinder clamp
  • 2 in (50 mm) piece of black PVC tubing to cover the cylinder band adjustment screw

Highland Pony Mount

 

  • Rubber bumpers to protect paint
  • 316 grade stainless steel construction
  • Adjustable length nylon webbing
  • Roller wheels make it easier to cam over the buckle and provide protection to the cylinder paint
  • Stainless steel cam buckle
  • The band can be rotated in the bracket so that the buckle may be positioned on the left or right side
  • Available in two sizes
    • Pony mount for 4.4 in (112 mm) Diameter cylinders - Fits sizes 8, 13, & 19 cu ft
    • Pony mount for 3.2 in (81 mm) Diameter cylinders - Fits size 6 cu ft

Light Monkey Stage Bottle Kit for 40 aluminum

Light Monkey stage bottle kits include: hose clamp with cover, EPDM hose-retaining band, and pre-tied stage bottle strap. 

Light Monkey Stage Bottle Kit for 80 aluminum

Light Monkey stage bottle kits include: hose clamp with cover, EPDM hose-retaining band, and pre-tied stage bottle strap. 

Trident Pony Bottle Holder Kit

 

  • One pony bottle holding ring
  • Two 5mm stainless steel allen head screws
  • Two 8mm X 83mm stainless steel clevis pins with stainless steel split rings
  • One tank to pony bottle support bracket
  • 12-inch nylon coated safety lanyard

Oxycheq Stainless Steel Mini Tank Adapters

 Two sections with nuts, bolts and washers. 

Highland STA - Single Tank Adapter

 

  • 14 gauge .074 in (1.9 mm) 316 grade stainless steel
  • A quick, easy way to mount a single cylinder to a backplate and harness
  • Attaches to cylinder with two cam bands
  • Center-to-center distance of 11 in (28 cm)
  • Includes hardware
  • Weight: 13 oz (369 g) without hardware
  • Dimensions: 3.2 x 11.8 in (8.0 x 30 cm)

Highland Tank Bands with SS Cam Buckles – Pair

 

Separating buckles allow for easy detachment, no need to slide off top of cylinder.

  • Traditional 3-slotted cam buckle made from marine grade 316 stainless steel
  • Enlarged protective webbing lays behind the buckle to protect tank scratching
  • Backside of webbing has integrated anchor pad, which eliminates tank slippage
  • Designed to fit 6.9 in (175 mm) to 8.0 in (203 mm) diameter cylinders

Tank Cam Strap with Stainless Steel Buckle

  • Standard length fits most BCs that have standard backpacks
  • Shorter length fits most BCs without hard packs
  • Both versions fit 6.9 in (175 mm), 7.25 in (184 mm) & 8.0 in (203 mm) diameter cylinders
  • Cam buckle made of marine grade 304 stainless steel
  • The buckle separates for easy removal of BC from cylinder
  • Tension can be adjusted while on cylinder
  • Integrated anchor pad prevents tank slippage
  • Available in two sizes:
    • Standard Length: 31.25 in (793 mm)
    • Phantom BC Length: 28.25 in (717 mm)

Tank Cam Straps - PAIR

 

  • Injection-molded cam buckles
  • Molded from nylon with glass fill
  • Available in two sizes
    • Standard Length: fits 6.9 in - 8.0 in (17.5 - 20.3 cm) diameter cylinders. Overall webbing length of 40 in (102 cm)
    • Short Length: fits 4.0 in - 5.25 in (10.2 - 13.3 cm) diameter cylinders. Overall webbing length of 26 in (66 cm)

Oxycheq Stainless Steel Cam Straps

 

A single Cam Buckle with StrapFriction pad on strap to hold tanks and keep them from slipping

  • Two Inch webbing
  • Friction pad sewn in
  • Stainless is approximately 9 ounces 

Oxycheq Composite Cam Straps

 

A single Cam Buckle with StrapFriction pad on strap to hold tanks and keep them from slipping

  • Two Inch webbing
  • Friction pad sewn in
  • Composite is approximately 5.5 ounces.


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U.S. Darkwater will close at 3:00 p.m. on Friday, April 25, 2025.  We will reopen on Monday, April 28, 2025 at 9:00 a.m.