Does it work with glass water bottles (such as pellegrino bottles)? Thanks.

NO! Don't ever try to force carbonation into a glass bottle, unless you want to be blasted with shrapnel from the bottle when it explodes! These are for plastic PET bottles only.

What size is the big flat o ring on the inside? I need a replacement for my carbonator cap.

Hello,the size of the big O-ring inside are 26mm(outside diameter),18mm(inner diameter),4mm(line diameter).Thank you !

I've just got one of these, and it leaks when connected to a normal pet bottle. is this what the o-ring is for? or do i have a deffective unit?

Make sure the inner metal piece..the one with the hose Barb..is tight. It screws into the main part of the cap. Also that large washer is key to getting a good seal on the bottle. Mine gets screwed down so tight that when I remove the cap it's inside the mouth of the pet bottle.

will this take both liquid and gas assemblies?

Yes, you can use the liquid or gas assemblies ( liquid ball lock or gas ball lock)

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FERRODAY Stainless Steel Carbonation Cap Forced Carbonation PET Bottle Filling 5/16 Barb CO2 Coupling to Carbonate Soda Beer Stainless Steel PET Bottle Carbonation Cap + O-ring + Gasket(2 Pack)

FERRODAY Stainless Steel Carbonation Cap Forced Carbonation PET Bottle Filling 5/16 Barb CO2 Coupling to Carbonate Soda Beer Stainless Steel PET Bottle Carbonation Cap + O-ring + Gasket(2 Pack)

Product ID: 323783811

💨Effortless forced carbonation with 5/16 barb CO2 coupling

⚙️Fits standard 1-1/8-8un PET bottles, universal compatibility

🛡️Heavy-duty stainless steel, rust & corrosion-proof

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Rp754899

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🍾 Elevate Your Homebrew Game — Carbonate Like a Pro!

BUILT TO LAST BREW AFTER BREW - Premium stainless steel resists rust and corrosion for long-term durability.
EFFORTLESS CARBONATION AT HOME - Simply attach to your PET bottle and CO2 disconnect for quick, reliable forced carbonation.
BONUS REPLACEMENT PARTS INCLUDED - Extra gaskets and o-rings in the package mean zero downtime and worry-free brewing.
LEAK PROOF SEAL WITH FOOD SAFE GASKETS - High-resilience rubber o-rings ensure airtight, no-leak connections every time.
UNIVERSAL FIT FOR YOUR FAVORITE BOTTLES - Designed to fit most soft drink PET bottles with PCO1881 threading for seamless carbonation.

The FERRODAY Stainless Steel Carbonation Cap is a robust, corrosion-resistant accessory designed for homebrewers to easily force carbonate beverages in standard PET bottles. Featuring a universal 5/16 barb CO2 coupling and food-safe leak-proof gaskets, it ensures quick, reliable carbonation with included replacement parts for lasting performance. Perfect for crafting soda, beer, or sparkling water at home with professional-grade results.

Specifications

ASIN	B091BZYXKX
Best Sellers Rank	#29,748 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #6 in Beer Brewing Kegs & Kegging
Customer Reviews	4.6 4.6 out of 5 stars (865)
Date First Available	April 20, 2021
Item Weight	6.7 ounces
Manufacturer	FERRODAY
Package Dimensions	5.63 x 3.62 x 1.3 inches

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