Captain O-Ring CO2 Internal Pin Valve Seals 5 Pack

Curated from 56 real Reddit conversations

Refreshed on: April 10, 2025

Captain O-Ring CO2 Internal Pin Valve Seals 5 Pack

Brand: Captain O-Ring
Price: $13
Snoop Score:
5.5
Sentiment
4.3
Popularity
9.2
Technical
4.0

Snoop's Take

The Captain O-Ring CO2 Internal Pin Valve Seals are designed for screw-in paintball tanks, available in packs suitable for 9oz, 12oz, and 20oz tanks. These high-quality polyurethane seals aim to replace worn-out internal valve seals, ensuring a reliable and long-lasting seal for your paintball equipment. Feedback from users highlights the durability of the seals, with one user noting that "the new o-ring is correct, it will compress when installed to create a good seal," though some have raised concerns about the accuracy and reliability of color-coded seals, which can wear faster and may not be as precise as standard models. Overall, while the Captain O-Ring seals are generally well-regarded for their quality, potential buyers should consider the feedback regarding color-coded options and ensure they select the right type for their needs. Based on the mixed sentiments, these seals are recommended for those seeking dependable replacements for paintball tanks, provided they stick to standard black buna-n seals.

Not for you? Check out our other rated Replacement Parts

the kit was fine.

Positive Feedback

This one only has 2 reviews and one claims it's not accurate and to get the dye one, but the dye one is 3x as expensive and has way more orings than I see myself ever needing.

Negative Feedback
Product
5.5
Captain O-Ring CO2 Internal Pin Valve Seals 5 Pack
On-Field Emergency Repairs
4 / 10
Routine Maintenance
6 / 10
Bulk Replacement Orders
4 / 10
Precision Seal Matching
9 / 10
See how this compares to all Replacement Parts

What it does well!

Key strengths users can’t stop talking about.
High quality and durability of seals
the kit was fine.
They are fine.
I did end up finding some Captain O-Ring replacement kits and some eye retainers that I needed but it seems the Captain O-Rings are pretty crappy quality and keep breaking on the bolt sleeve.
The o-rings are fairly universal, just avoid color coded o-rings as they are generally low quality and are out of spec/wear out much faster than standard black buna-n seals.

Where it needs some work!

Areas to watch—feedback on possible improvements.
Concerns about accuracy and reliability of color-coded seals
This one only has 2 reviews and one claims it's not accurate and to get the dye one, but the dye one is 3x as expensive and has way more orings than I see myself ever needing.
Color coded rubber wears faster, sometimes has off‑spec measurements, sometimes has off‑spec durometer, and is more prone to failure.
Any other special seals can be added later as needed, just follow the manual for what sizes you need.
Literally every single backpack or hand sprayer is going to have o‑rings and other seals go out on them eventually, especially depending on what you're spraying out of them.

Compare On All Talked About Dimensions

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Core Power Plays

The specs and strengths that make it shine.
Long-lasting usage of o-ring kits
I am still on the first kit.
I can't figure out how to get it open.
Discussion on O-rings and seals in various applications
the o-ring on the left has been squashed to the point it is no longer round in profile, your replaced one is right

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.
Discussion on o-rings and seals in various sprayers
Ordered, thanks. Hope it fixes mine, that only has “full power” for about a second before going back to pumping nothing.
I have a citadel boss 25 that some rubber ring snapped and I can't find anything at all about it other than the ring size says the same 1 and .075 but idk how to even find that any help?
always handy to have the harbor freight o-ring assortment packs around.

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
General chatter about the need for O-ring maintenance
Fixed it was simple
https://www.captainoring.com/store/p299/CTWart12ga-4pk.html
Did you have any luck finding the right o-ring? I used digital calipers to measure the width of the groove it sits in which should be the inner diameter (ID) of the o-ring.
Discussion about alternative O-ring sources
Black buna yes.
Yup! Bought a 1200pcs kit off Amazon it was like $15 and covers 90% of the orings I encounter.
You're much better off going through your manual and figuring out which sizes you need, and ordering directly from the oring store.

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Humorous remark about product name
Is that a condom brand? Captain o ring hehe

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