Captain O-Ring Replacement Paintball Fill Nipple O-Rings

Curated from 46 real Reddit conversations

Refreshed on: March 22, 2025

Captain O-Ring Replacement Paintball Fill Nipple O-Rings

Brand: Captain O-Ring
Price: $11
Snoop Score:
5.6
Sentiment
5.0
Popularity
8.2
Technical
4.5

Snoop's Take

The Captain O-Ring is a pack of ten replacement paintball fill nipple o-rings designed for HPA tanks, made from durable 90 durometer polyurethane. Users appreciate the durability of these o-rings, with comments like, "While I’m at it, I want to replace all of the o rings," highlighting the product's reliability. However, some users have reported issues with o-ring softness leading to splitting and leaking, as well as concerns about the size of color-coded o-rings. Overall, despite some criticisms, the Captain O-Ring is generally recommended for its durability and effectiveness in maintaining air tanks in working order.

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While I’m at it, I want to replace all of the o rings.

Positive Feedback

That’s what I figured. But I’ve never blew o-rings on my cold water units, only when I started using the heated unit.

Negative Feedback
Product
5.6
Captain O-Ring Replacement Paintball Fill Nipple O-Rings
On-Field Emergency Repairs
6 / 10
Routine Maintenance
9 / 10
Bulk Replacement Orders
3 / 10
Precision Seal Matching
6 / 10
See how this compares to all Replacement Parts

What it does well!

Key strengths users can’t stop talking about.
Durability of the o-rings
While I’m at it, I want to replace all of the o rings.
And if you end up just having issues finding anything you need or just end up needing someone to work on it bearded works is a great option and he is around these subs a lot.

Where it needs some work!

Areas to watch—feedback on possible improvements.
Frequent blowing of o-rings in hot water units
That’s what I figured. But I’ve never blew o-rings on my cold water units, only when I started using the heated unit.
Color-coded o-rings may be slightly larger
Aren't the colored orings slightly larger though?
Softness issues causing splitting and leaking
It's because they are too soft. The durometer is incredibly important for wear, swelling, softness.
Frequent replacement of o-rings
My backpack sprayers are for my vinegar weed killing mix, and I've had to change out various o-rings (especially in the wands) many times.

Compare On All Talked About Dimensions

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Core Power Plays

The specs and strengths that make it shine.
Discussion on finding the correct rubber ring size for paintball guns
Did u ever find the gas seal? I tried the link and bought the pack of 4 but its of course the wrong size.
Ok so I know these guns are pieces of poop but when I went to clean mine I was putting it back together and must of caught something on the ring and cut through it.
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?

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Discussion on alternative O-ring sources
If you need a replacement O ring for your P320, Harbor Freight has packs for $4
Do they also have a replacement for the P320 itself?
My pistols take green O rings 😎👍
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.
Discussion on o-ring compatibility with different units
Keep blowing o-rings. Help? I go thru o-rings like crazy.
Only time they blow out very often is if they arent the right size or durometer.
General discussion on o-ring maintenance
Awesome! I've been hoping we'd get an answer on this.
Links to alternative O-ring sources
https://www.captainoring.com/store/p299/CTWart12ga-4pk.html
https://www.captainoring.com/store/p299/CTWart12ga-4pk.html
Discussion on finding the right o-ring size
I believe it should be a metric o-ring (and I think something may have been wrong with the calipers because they are different).
Inquiries about replacement o-rings for specific models
Would anyone here know where I could find a replacement O-Ring for my fill nipple
I bought the replacement o ring but I can't figure out how to get it open
Discussion about using alternative o-ring sources
always handy to have the harbor freight o-ring assortment packs around
Issues with compatibility of replacement o-rings
the o ring even sticks to the side walls, and comes off the core

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