If they are 90% chance this is made in china how can we know the plastic is bpa free?

Don't see that it matters. Nothing passes through the device into the carboy and positive to static neutral pressure inside prevents air from entering. Zero contact means no chance of transfer.

Can the airlock be removed from the bung and used with other standard bungs?

Yes, the twin bubble airlock can be removed from the bung.

what is the height of these from top to bottom?

aloha it is 7 inches.Try making "mead" it is amazingly good even with regular yeast! Add raisins

Will this fit my 5 gallon class jug?

Yes. The universal bungs that come with the twin bubble airlocks are designed for 3, 5 & 6 gallon glass carboys.

Fastrack Twin Bubble Airlock for Fermentation | Hydrolocks for Fermenting Wine and Beer Making | BPA-Free Cylinder Airlock Used for Brewing Wine, Beer, Pickles & More | Transparent Airlock Set of 2

Fastrack Twin Bubble Airlock for Fermentation | Hydrolocks for Fermenting Wine and Beer Making | BPA-Free Cylinder Airlock Used for Brewing Wine, Beer, Pickles & More | Transparent Airlock Set of 2

Product ID: 49631135

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Details

Brand
FastRack
Colour
Clear/Tan
Finish type
Clear Cut
Is customisable
No
Item weight
30 Grams
Manufacturer
Fermtech

🔍100% transparent for full fermentation visibility

♻️BPA-free, food-grade safe materials

🛡️airtight design prevents oxidation

Description

🍷 Brew Boldly, Bubble Clearly — Fermentation Made Effortless!

OXIDATION BLOCKER - Airtight seal locks out oxygen, preserving flavor and quality effortlessly.
SET FORGET AUTOMATION - Automatically vents CO2 at room temperature—no manual fiddling required.
CRYSTAL CLEAR MONITORING - Watch your brew bubble and evolve in real-time with ultra-transparent design.
TRUSTED QUALITY ASSURANCE - Backed by thousands of 5-star reviews and a satisfaction guarantee for peace of mind.
VERSATILE FERMENTATION PARTNER - Perfect for wine, beer, pickles, kimchi, and more—your all-in-one fermentation sidekick.

The Fastrack Twin Bubble Airlock is a BPA-free, food-grade fermentation essential designed for professional and hobbyist brewers alike. Its crystal-clear, airtight construction allows you to monitor fermentation progress while preventing oxidation. This set of two automatic airlocks fits standard jugs and carboys, venting CO2 efficiently without manual intervention. Ideal for crafting wine, beer, and fermented foods, it combines durability, ease of use, and trusted quality to elevate your homebrewing experience.

Specifications

ASIN	B00A6TRKO4
Best Sellers Rank	2,194,807 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 162 in Fermentation Airlocks
Brand	FastRack
Brand Name	FastRack
Colour	Clear/Tan
Customer Reviews	4.5 out of 5 stars 13,430 Reviews
Finish Type	Clear Cut
Finish type	Clear Cut
Global Trade Identification Number	00825392000052
Included Components	Airlock and Stopper (Pack of 2)
Is Customizable?	No
Item Dimensions L x W	8L x 5W centimetres
Item Type Name	Bubble Airlock and Bung (2pk)
Item Weight	30 Grams
Item weight	30 Grams
Manufacturer	Fermtech
Manufacturer Part Number	B00A6TRKO4
Material	Plastic Rubber
Material Type	Plastic Rubber
Model Number	B00A6TRKO4
Number of Items	2
Product dimensions	8L x 5W centimetres
UPC	628504292792 825392000052
Unit Count	2.0 Count

Reviews

M**M

Just perfect

31.05.2023

Z**O

Fiel a la descripción

Muy funcionales, material resistente de buena calidad, fácil de lavar, cabe en la boquilla de una garrafa de un galón, muy útil para que las fermentaciones no se avinagren

27.02.2026

A**R

Product works great, happy buyer.

27.04.2020

A**T

Good product

11.08.2018

J**N

Best price

2.03.2026

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