o rings

I was able to get a second hand PV102 made by Scubalamp for a good price. I am trying to find two things that are proving difficult, compatibility for TSA approved airline travel. Can I carry this thing on my carry-on luggage? It uses 7X18650 3.7 3000mA batteries in the sealed aluminum...

So I have purchased a few tanks (HP 100 and HP 133 and a handful 2 bony bottles) over the years. Every time I go to change the Orings (lost or damaged/worn) I notice that the O rings my local lds gives me are somewhat softer and different looking than the ones that came with the tanks. The ones...

Hi all, I'm interested in making a O-ring kit to include in my save-a-dive box. Would appreciate it if you guys can assist in providing advice for the sizes and materials needed. Below is the list of O rings I hope to include 1. MK17 Evo Din First Stage O ring 2. Yoke Tank Valve O ring 3...