Cressi Leonardo o-ring?

[AcornMan]

I'd like to stock a couple o-rings for my Cressi Leonardo computer in my save-a-dive kit, but for the life of me I can't figure out exactly what size to buy, and the kits that include an o-ring, battery, and battery cover seem like a rip-off. Does anyone know what I need?

 

[AcornMan]

Looks like I answered my own question: #26 o-ring made by Danco, available at Ace Hardware for 79 cents. It appears to be identical to the one that came with the computer. In fact, I lost track of which was the original and which was the new one when I was testing them at the hardware store.

 

[fiferguy]

I know this is months old, but I was looking for the o-ring size for this computer and I ran across this post. I looked up the Danco #26, and if that's the right size o-ring (I don't have the computer yet to check it, but I believe the OP), it's just a standard -125 size o-ring, 70A durometer value.

Danco's page on the #26 (#26 O-Ring (1 per Bag) - Danco)

McMaster-Carr has them for $7.56 for a pack of 100 (McMaster-Carr). Theoringstore.com has them for $0.06 a piece, but I'm not sure if there's a minimum order or not.

Anyway, just thought I'd share.