can these be used instead of refill kit for personal floatation device?

There are two things you need to know in order to see if these co2 cartridges will work for personal floatation device. I happened to own a PFD for my boat as well. First, these cartridges were 3/8 24 thread and my PFD use 1/2" thread co2 cartridges. I am not sure about yours. Also capacity of the co2 cartriges, this one is only 16g and most PFD will need 24g or higher. Since bike tire air volume is smaller than a PFD volume and it might not fill your PFD fully. Hope this help.

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CXWXC 16g / 25g Threaded CO2 Cartridges for Bike Tires

CXWXC 16g / 25g Threaded CO2 Cartridges for Bike Tires

Product ID: 276451564

Details

Brand
CXWXC
Color
16g x 20 Pack
Item Weight
0.16 g
Material
Alloy Steel
Power Source
Hand Pump

⚡Fast inflation in seconds

🔩Universal threaded 3/8-24 fit

🪶Ultra lightweight & compact

290.49 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚴‍♂️ Inflate Fast, Ride Faster – Never Miss a Mile!

RAPID TIRE RESCUE - Inflate a 26” MTB tire to 40psi in a single shot—get back on the trail instantly.
DUAL TERRAIN READY - Perfectly inflates both road tires up to 100psi and mountain bike tires to 40psi.
POCKET SIZED POWER - Compact and featherlight design fits effortlessly in your saddle bag or jersey pocket.
ECO CONSCIOUS SAFE - Made from durable alloy steel, recyclable after one-time use—ride responsibly.
SEAMLESS COMPATIBILITY - Threaded 3/8-24 connection works flawlessly with all standard CO2 inflators.

The CXWXC 16g/25g Threaded CO2 Cartridges deliver rapid, reliable inflation for road and mountain bike tires with a universal 3/8-24 threaded design. Lightweight and compact, these alloy steel cartridges inflate tires up to 100psi (road) or 40psi (MTB) in seconds, making them an essential, eco-friendly tool for every serious cyclist’s emergency kit.

Specifications

Asin	B08HH57FS6
Best Sellers Rank	#3,349 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #2 in Bike CO2 Pump Systems
Brand Name	CXWXC
Color	16g x 20 Pack
Customer Reviews	4.3 4.3 out of 5 stars (178) 4.3 out of 5 stars
Included Components	No
Item Highlight	Cartridge for CO2 Inflator with Threaded Connection, CO2 Pump for Road and Mountain Bikes
Item Type Name	CO2 Cartridges
Item Weight	0.16 g
Manufacturer	CXWXC
Manufacturer Part Number	CO2-CXBT-20P
Material Type	Alloy Steel
Maximum Pressure	100 psi
Model Number	CO2-CXBT-20P
Operation Mode	Manual
Power Source	Hand Pump
Warranty Description	1

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