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Aluminum Precision Products (APP) are the world's largest producer of precision aluminium and iso-thermal titanium forgings supplied to the areospace industry.  Under APP's guidance, Catalina Cylinders has grown to become an industry leader.  All Catalina cylinders come with a 10-year manufacturing defect warranty.

Nitrox use: The S40, S80, C65 and C95 cylinders are approved for filling with Nitrox to a maximum of 40% oxygen at 15 degree Celsius. Under no circumstances are these cylinders to be filled with a greater oxygen content.


Catalina Cylinder Specifications

Size Working Pressure Diameter Length Weight Water
95cuft 241 Bar 184.2mm 701mm 17.1kg 11.3l +.13kg
80cuft 204 Bar 184.2mm 658mm 14.2kg 11.1l +1.86kg
65cuft 241 Bar 184.2mm 531mm 13.2kg 8.3l -0.45kg
40cuft 204 Bar 133.4mm 635mm 7.3kg 5.8l +.64kg
19cuft 204 Bar 111.3mm 445mm 3.5kg 2.7l +.09kg


  • Buoyancy calculated with "K" valve in seawater
  • MATERIAL: Every cylinder is produced from high strength aluminum alloy 6061-T6.
  • THREAD:  Standard 3/4 - 14 NPSM.
  • All capacities are exact except the industry standard S80 which has an actual capacity of 77.4 cu ft.

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Shipping & Returns

Returns Policy

30-Day Refund

We are absolutely committed to making sure you're happy with your purchase. You can return any product purchased from in an unused, brand new condition within 30 days of the date of the purchase and we will refund your money back. Please advise us by email and include a printout of your original invoice if you return a product to us.

Perfect Fit Guarantee

Please use our indicative sizing guides which show height and weight ranges and other measurements to choose your size. If you have any queries about size, you can advise us when you complete your purchase in the comments field. We will contact you and make sure we're sending you the best possible size. If you receive an item and it doesn't fit to your satisfaction, you can return it to us in an unused, brand new condition and we will send another size free of charge. Please advise us by email and include a printout of your original invoice if you return a product to us.

  • Free Shipping for orders over $100
  • Standard Shipping: $14.95
  • Standard Shipping Tracked: $19.95
  • Fast Shipping Tracked: $24.95 (1-3 days)

Once your payment has cleared, your order will be packed and dispatched within our 48-hour guarantee.

How long will it take to get my order to me?

We use tracked International EMS Post for 3-10 days delivery anywhere in Australia.

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