Is each cartridge a one time use for a 64oz growler?

One cartridge should last for at least two 64oz growlers

Can the co2 cartridges go in the refrigerator once attached to the mini keg?

Yes, colder better for carbonation.

is there any nitrogen in this? what is the purity %

It is 99.5% pure CO2. There should not be nitrogen in it.

What's the threading on thees. Is it a standard threading ir proprietary?

This is a standard thread, 3/8x24, it is not proprietary.

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TrailKeg - 6-Pack 16g Threaded Food Grade CO2 Cartridges

TrailKeg - 6-Pack 16g Threaded Food Grade CO2 Cartridges

Product ID: 418634479

Details

Brand
TrailKeg
Capacity
16 g
Colour
Stainless
Item Volume
32 Millilitres
Item Weight
16 Grams

🔩3/8x24 threaded precision fit

🧊16g pure CO2 per cartridge

🇺🇸Made in USA, food grade safe

Description

⚡ Elevate your pour with TrailKeg’s pure fizz power!

FOOD GRADE ASSURANCE - Manufactured to strict food safety standards for the cleanest, freshest fizz.
PURE CARBONATION POWER - Each 16g cartridge delivers up to 1 gallon of perfectly carbonated beverage.
SEAMLESS COMPATIBILITY - Threaded 3/8x24 design fits TrailKeg regulators and gallon/half-gallon kegs effortlessly.
COMPACT 6 PACK CONVENIENCE - Stock up with six cartridges, ensuring you never run out during your next gathering.
TRUSTED QUALITY FAST DELIVERY - Highly rated by users for reliability and quick shipping—keep your growler party-ready.

TrailKeg’s 6-pack of 16g threaded CO2 cartridges offers food-grade, USA-made carbonation designed specifically for TrailKeg regulators and kegs. Each cartridge efficiently carbonates up to one gallon of beverage, providing a reliable, easy-to-use solution for fresh, bubbly drinks at home or on the go.

Specifications

ASIN	B07TPB1Y8W
Brand Name	TrailKeg
Capacity	16 g
Colour	Stainless
Customer Reviews	4.7 4.7 out of 5 stars (252)
Item Volume	32 Millilitres
Item Weight	16 Grams
Manufacturer	TrailKeg
Part Number	L16GCO26
UPC	853402008033

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