Ferroday stainless carbonation cap top view shows PET bottle compatibility for homebrew carbonation.
Ferroday ball-lock CO2 coupling installed on a bottle for quick carbonation setup.
Ferroday 2-pack includes carbonation cap with O-rings for easy replacement.
Ferroday PET bottle setup for forced carbonation demonstrated on a bottle.
Close-up of Ferroday stainless cap seal highlighting gasket integrity.
CO2 connection with Ferroday shows a durable, rust-proof design for carbonation.

Ferroday

Ferroday Stainless Steel Carbonation Cap for PET Bottles – Forced CO2 (2 Pack)

High-performance kitchen and dining made for confident daily results

$26.28

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Why customers choose Oico Home, Kitchen and Dining

Overview

Engineered for homebrewers and curious hobbyists, the Ferroday Stainless Steel Carbonation Cap enables controlled, in-bottle carbonation using CO2. Built to withstand the rigors of regular use, its corrosion-resistant steel and resilient gaskets help create a dependable setup for beverage experiments in PET bottles.

Why it shines

Texture and build quality matter when you’re carbonation-ready. The cap’s heavy-duty stainless body resists rust and wear, while food-safe gaskets and extra O-rings minimize leakage potential. The design is compatible with popular PET bottles that feature PCO1881 / 1-1/8-8UN threads, making it a practical addition to a homebrew toolkit.

Key benefits

  • Durable, corrosion-proof stainless steel for long-lasting use
  • Leak-resistant seals enabled by premium gaskets and O-rings
  • Designed for forced carbonation of beverages in PET bottles
  • Compatible with common bottle standards (PCO1881 / 1-1/8-8UN)
  • Ideal for both carbonation and line cleaning workflows
  • Two-cap package with replacement seals for ongoing upkeep

What you get

  • 2 x Ferroday stainless carbonation caps
  • Bonus O-rings and gaskets for easy maintenance
  • Simple setup for quick carbonation sessions

Real-life use cases

Imagine turning your homemade beverages into ready-to-drink sodas, beers, or specialty drinks with a quick CO2 push. The cap connects to a ball-lock gas disconnect, allowing CO2 to flow into the bottle and build pressure—great for small-batch experiments or refreshing beverages at home.

When you’re not carbonating, the cap can assist with cleaning by flushing lines with CO2, helping to clear residuals between batches. The robust construction and reliable seals give you confidence to experiment without constant fear of leaks.

How to get started

  1. Attach the cap to a PET bottle with compatible threads.
  2. Connect a ball-lock gas disconnect and begin CO2 flow.
  3. Monitor carbonation levels and release pressure as needed.
  4. When not in use, rotate with care and replace O-rings/gaskets as recommended.

FAQ

Q: What bottles does the Ferroday carbonation cap fit?

A: Designed for PET bottles with common threads (PCO1881 / 1-1/8-8UN) for in-bottle carbonation.

Q: What comes in the package?

A: A 2-pack of stainless caps with extra O-rings and gaskets for replacement and ongoing use.

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