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 or CO2 Inflator for Bike Tires - Cartridge for CO2 Inflator with Threaded Connection, CO2 Pump for Road and Mountain Bikes

Product ID: 323468952

Details

Brand
CXWXC
Color
16g x 12 Pack
Item Weight
0.02 Kilograms
Material
Alloy Steel
Power Source
Hand Pump

⚡Inflates MTB tire to 40psi in one shot

🔩Universal 3/8-24 threaded compatibility

🪶Ultra-lightweight & compact for easy carry

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6353 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

RAPID REFILL POWER - Get back on the trail in seconds with 16g cartridges that fill a 26” MTB tire to 40psi instantly.
ROAD MOUNTAIN READY - Perfectly calibrated to inflate road tires up to 100psi and mountain bike tires to 40psi—versatility meets performance.
UNIVERSAL THREADED FIT - Compatible with all 3/8-24 threaded CO2 inflators for seamless, no-fuss inflation on any ride.
SAFETY SUSTAINABILITY - Recyclable alloy steel cartridges with clear safety guidelines to keep your ride smooth and eco-conscious.
FEATHERWEIGHT CONVENIENCE - Compact and lightweight design fits effortlessly in your saddle bag or jersey pocket—ditch the bulky pump.

The CXWXC 16g/25g Threaded CO2 Cartridges deliver rapid, high-pressure inflation for road and mountain bike tires with universal 3/8-24 threading. Lightweight and compact, these alloy steel cartridges provide up to 100psi for road tires and 40psi for MTB tires, making them an essential, eco-friendly tool for every serious cyclist’s emergency kit.

Specifications

ASIN	B091DP68C8
Best Sellers Rank	#2,826 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Bike CO2 Pump Systems
Brand Name	CXWXC
Color	16g x 12 Pack
Customer Reviews	4.6 4.6 out of 5 stars (1,512)
Included Components	No
Item Type Name	CO2 Cartridges
Item Weight	0.02 Kilograms
Manufacturer	CXWXC
Manufacturer Part Number	CO2-CXBT
Material Type	Alloy Steel
Maximum Pressure	100 Pound per Square Inch
Operation Mode	Manual
Power Source	Hand Pump
Unit Count	12.0 Count
Warranty Description	1

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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