Hollis Prism 2 - Electronics Cover Small O-Ring (2.235.50)
100CM 15AWG 8MM Ring Terminal SAE to O Ring Connecters Extension Cord Cable Connector for Battery Charger/Maintainer|Motorcycle Electronics Accessories| - AliExpress
100% ABS duty watertight dry box /case with O ring for carrying handheld electronics and personal items in or around the water - SOLAS Marine Lifesaving equipments, Fire-fighting, water sport life jackets,
China Electronics Industry Insulating Red Sil Rubber O-Ring Photos & Pictures - Made-in-china.com
Dual sync cord 5-pin with double o-ring to INON / Sea&Sea