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Hollis Isolation Manifolds

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Hollis Manifolds combine 2 modular tank valves using an isolator crossbar allowing divers to carry a much larger gas supply.

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The highly popular Hollis Isolation Manifolds combine two modular tank valves using an Isolation Crossbar. The major advantages of using an Isolation Manifold is that it allows divers to carry a much larger gas supply for redundancy with the added safety feature of being able to safely isolate and or shutdown a post should an unforeseen problem occur. This system provides the diver with a greater level of safety and ensures true piece of mind when taking on more challenging technical dives.

To enhance the ease of use of the valves, Hollis has chosen shock resistant rubber knobs on each valve post to ensure an easy and positive feel when controlling the valves – even when wearing thick neoprene dive gloves. The Hollis Isolation Manifold 300 BAR / 4350 PSI is supplied with DIN Valves that are highly durable. This allows complete flexibility for the diver and can handle multiple setup configuration options. The 200 Bar version is supplied with 225 Bar DIN/K (Yoke) Valves with removable valve inserts, so can be used in either configuration.

The Hollis Isolation Manifold is available in two different width configurations as well to suit your individual application. The two different options are either the Standard or the Short option. Each option is designed for a specific application so make sure that you choose the correct one for your intended use when you add it to your shopping cart. The Standard option is designed to fit either 7.25” Aluminium cylinders (80-95 cu ft typically) or 12 Litre / 100 cft steel cylinders while the Short option is specifically designed to suit 9 Litre / 75 cft steel cylinders.

  • 200 & 300 Bar options available
  • Available in Standard & Short options
  • Nitrox compatible to 40% out of the box.
  • Double O-ring seals
  • Shock resistant rubber knobs
  • Durable chrome-plated brass
  • 200 Bar – Yoke or DIN fitting
  • 300 Bar – Din Only

For more information see the Hollis USA Website

Additional information


Short, Standard


200 Bar, 300 Bar

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