Quad Underwater Lift Bags are a compact, multi-purpose flotation tool and a daily essential for divers across commercial, technical, wreck and public safety operations. Designed for maximum versatility, quad bags can be used for object recovery, uplines, decompression line floats, or as a dry bag to protect tools, valuables and personal items underwater.
Manufactured by Subsalve USA, these lift bags are made from high-strength, lightweight vinyl-coated nylon, allowing them to be rolled up small enough to carry on every dive. Each bag is clearly marked on both sides with a high-visibility red “Diver Down” flag, improving safety during surface and near-surface operations.
Quad bags are supplied ready for immediate use and feature a bottom waterproof closure, Velcro tie strap, stainless steel snap, and oral inflation capability. Their simple, reliable design makes them one of the most adaptable flotation tools available to divers today.
Key Features
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Lightweight, compact quad-style lift bag
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Manufactured from vinyl-coated high-strength nylon
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Rolls up small enough to carry on every dive
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Screen-printed “Diver Down” flag on both sides for high visibility
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Bottom waterproof closure
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Velcro tie strap for secure stowage
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Stainless steel snap attachment
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Oral inflation
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Supplied complete with all necessary hardware
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U.S. Patent No. D-362,817
Multiple Applications
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Object recovery lift bag
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Upline float
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Decompression line float
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Dry bag for tools or personal belongings
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Inflatable diver warning flag / surface float
Product Specifications
| Model | Lift Capacity | Width | Height | Packed Size | Weight |
|---|---|---|---|---|---|
| QB 50 | 55 lb (25 kg) | 14 in (0.36 m) | 30 in (0.77 m) | 15 × 10 × 2 in | 1.0 lb (0.45 kg) |
| QB 100 | 110 lb (50 kg) | 28 in (0.72 m) | 30 in (0.77 m) | 15 × 10 × 2 in | 1.5 lb (0.68 kg) |
| QB 200 | 220 lb (100 kg) | 40 in (1.02 m) | 36 in (0.92 m) | 15 × 10 × 3 in | 2.5 lb (1.13 kg) |
Compliance & Quality Assurance
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Individually tested prior to shipping
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Custom sizes available
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Fully compliant with:
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IMCA D-016-AIRBAGS
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ABS
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U.S. Department of Defense Standards
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Contact our team for availability, specifications or bulk pricing.
Email: info@isubc.com
Phone: +44 (0)1253 767788





