Buoyancy Arm Comparison

12 June 2026 by
Buoyancy Arm Comparison
Charlotte Barnes

For buoyancy arms with larger diameters (90mm and above) long clamps may be required to fold arms down for packing instead of standard clamps.

Nauticam Carbon Fibre Float Arms

Carbon fibre tubing with moulded plastic end caps and machined aluminium balls, with an aluminium spine. Depth rating: 100m (330 ft).

Please note that float arm product numbers may vary depending on stock - the product is the same regardless of product number. Both product number versions are in circulation at time of writing.

New Product number

Previous Product number

Length

Diameter

Effective Buoyancy

72266

72221

200mm

50mm

160g (0.35 lbs)

72267

72222

250mm

50mm

240g (0.53 lbs)

72268

72223

300mm

50mm

320g (0.71 lbs)

72261

72216

200mm

70mm

370g (0.82 lbs)

72262

72217

250mm

70mm

520g (1.15 lbs)

72263

72218

300mm

70mm

670g (1.48 lbs)

72264

72219

170mm

90mm

450g (0.99 lbs)

72265

72220

220mm

90mm

720g (1.59 lbs)

72601*


350mm

37mm

190g (0.42 lbs)

*72601 is the Carbon Fibre Float Stick for the Nauticam Insta360 X5 Housing 15201.


Inon Float Arms

Weather-resistant ABS, hollow construction. Depth rating: 70m (230 ft).

Product

Length

Diameter

Effective Buoyancy

Float Arm S

174mm

52mm

75g (0.16 lbs)

Float Arm M

224mm

52mm

135g (0.3 lbs)

Float Arm ML

284mm

52mm

210g (0.46 lbs)

Mega Float Arm S

174mm

97mm

390g (0.86 lbs)

Mega Float Arm M

224mm

97mm

650g (1.43 lbs)


Stix Floats

These can fit onto any Ultralight-style double ball arms (and Inon stick arms with a little extra give) and are a good option for fine tuning buoyancy alongside regular buoyancy arms. Please note that these may not be ideal for deep diving (below 60m / 197 ft) as they may compress under extreme pressure.

Product

Effective Buoyancy (total)

Effective Buoyancy (each)

FUL-2 (Large)

383g (0.84 lbs) - four pieces

95g (0.21 lbs)

FUL-3 (Jumbo)

726g (1.6 lbs) - four pieces

181.5g (0.4 lbs)

FB-10 Buoyancy Collar

567g (1.25 lbs) - ten segments

56.7g (0.125 lbs)