SeaLife Buoyancy Chart

Items with negative buoyancy are in red, items with positive buoyancy are in green. A negative weight means the item has positive buoyancy.



Item #Item DescriptionWeight on Land (g)

Weight in Freshwater (g)

Weight in Seawater (g)Weight on Land (oz)Weight in Freshwater (oz)Weight in Seawater (oz)
SL0500.5x Wide Angle Dome Lens590226.0219.220.88.07.7
SL0510.75x Wide Angle Conversion Lens14720.019.45.20.70.7
SL052Micro Wide Angle Dome Lens331170.0164.911.76.05.8
SL0536″ / 15cm Wide Angle Dome Lens for SportDiver493-389.0-377.317.4-13.7-13.3
SL05452mm Wide Angle Dome Lens 0.7x329168.0163.011.65.95.7
SL08152-67mm Lens Adapter for SportDiver9090.087.33.23.23.1
SL350Reefmaster RM-4K20218.017.57.10.60.6
SL400SportDiver UW Smartphone Housing
(w/ batteries, Red Filter, Moisture Muncher; w/o phone)
680-78.0-80.324.0-2.8-2.8
SL400SportDiver UW Smartphone Housing
(w/ batteries, Filter, Moisture Muncher; w/iPhone 14 Pro Max)
964206.0199.834.07.37.0
SL405SportDiver Ultra UW Smartphone Housing
(w/ batteries, Red Filter, Moisture Muncher; w/o phone)
786-146.0-150.427.7-5.2-5.3
SL405SportDiver Ultra UW Smartphone Housing
(w/ batteries, Filter, Moisture Muncher; w/iPhone 14 Pro Max)
102694.091.236.23.33.2
SL500Micro HD UW Camera26614.013.69.40.50.5
SL501Micro HD+ UW Camera26614.013.69.40.50.5
SL510Micro HD 2.0 32GB UW Camera27927.026.69.81.00.9
SL512micro HD 2.0 64GB UW Camera27927.026.69.81.00.9
SL550Micro 3.0  UW Camera32952.050.411.61.81.8
SL650Sea Dragon Mini Dragon 650F Dive Light w/ battery23996.093.18.43.43.3
SL651Sea Dragon Mini Dragon 650S Dive Light w/ battery23996.093.18.43.43.3
SL653Sea Dragon Mini 900 Dive Light w/battery18099.096.06.33.53.4
SL654Sea Dragon Mini 1300S Dive Light  w/battery224106.0102.87.93.73.6
SL657Sea Dragon Mini 1200S DIVE LIGHT W/ BATTERY182.5102.4105.56.43.63.7
SL658Sea Dragon Mini 1600S DIVE LIGHT W/ BATTERY197.6105.5108.77.03.73.8
SL670Sea Dragon 2100SF UW Photo-Video Light410120.0116.414.54.24.1
SL671Sea Dragon 2500F UW Photo-Video Light37197.094.113.13.43.3
SL675Sea Dragon 4500F UW Photo-Video Light737320.0310.426.011.310.9
SL676Sea Dragon 5000F UW Photo-Video Light630279.0270.622.29.89.5
SL678Sea Dragon 3000F UW Photo-Video Light408114.0110.614.44.03.9
SL679Sea Dragon 3000SF Pro Dual Beam UW Photo-Video Light449145.0140.715.85.15.0
SL680Sea Dragon 5000+ UW Photo-Video Light557207.0200.819.67.37.1
SL681Sea Dragon 3000F Color Boost UW Photo-Video Light391102.098.913.83.63.5
SL720DC1400 UW Camera504-28.0-28.817.8-1.0-1.0
SL740DC2000 UW Camera691-14.0-14.424.4-0.5-0.5
SL920Float Strap (Measured at surface)147-100.0-103.05.2-3.5-3.6
SL931Buoyancy Floatation Ring147-110.0-113.35.2-3.9-4.0
SL934SS Buoyancy Weight187187.0192.66.66.66.8
SL963Sea Dragon Flash UW Photo-Video Light50977.074.718.02.72.6
SL970Wide Angle Lens, 24mm248123.0119.38.74.34.2
SL975Fisheye Wide Angle Lens383225.0218.313.57.97.7
SL976Super Macro Lens for DC Series52.528.327.51.91.01.0
SL97752mm adapter for DC-series19.511.010.70.70.40.4
SL97852mm-67mm Step-up Ring12.38.38.00.40.30.3
SL981Sea Dragon Mini Dragon 600 Dive Light  w/battery13146.044.64.61.61.6
SL983Sea Dragon 1200F UW Photo-Video Light37197.094.113.13.43.3
SL984Sea Dragon 2000FUW Photo-Video Light37197.094.113.13.43.3
SL9901Flex-Connect Flex Arm17857.055.36.32.02.0
SL9902Flex-Connect Micro Tray7825.024.32.80.90.9
SL9903PFlex-Connect Single Tray12537.035.94.41.31.3
SL9904Flex-Connect Dual Tray18353.051.46.51.91.8
SL9905PFlex-Connect Grip13216.015.54.70.60.5
SL9907Flex-Connect Clamp6040.038.82.11.41.4
SL9908Flex-Connect Ultra Dual Tray21764.062.17.72.32.2
SL9909Flex-Connect 8″ Ball Arm7647.045.62.71.71.6
SL994Flex-Connect YS Adapter369.08.71.30.30.3
SL995Sea Dragon Ball Joint Adapter6730.029.12.41.11.0
SL999Ball Joint Adapter for Flex-Connect6635.034.02.31.21.2
SLKIT07Sea Dragon Mini 1000F Dive Light w/battery292131.0127.110.34.64.5