O-Ring Red Buna for 4" Fermenter Lid
O-Ring Red Buna for 4" Fermenter Lid
Available in stock (112)
Red 4" Lid O-Ring (Food-Grade) 🧼
This red 4" O-ring is designed to seal the threaded lid on MiniBrew® fermenters. It’s FDA-approved for food contact and fits into the molded lid groove so it stays put during installation—no slipping out while you thread the lid on.
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Size: 4" diameter
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Material: Food-grade (FDA approved) U.S. Food and Drug Administration compliant
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Designed for: MiniBrew® threaded lid groove (won’t fall out) MiniBrew
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History: Standard equipment on fermenters made in the mid-2010s
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Professional Precision for the Serious Homebrewer.
Stop settling for "good enough" beer. Every world-class brewery starts with the same secret: a 60-degree conical design. At MiniBrew™, we’ve taken that professional-grade geometry and scaled it perfectly for your home brewery.
Why MiniBrew™?
Built for a Lifetime
Built for a Lifetime
Forget brittle glass carboys or flimsy buckets. MiniBrew™ tanks are molded from high-density, food-grade HDPE. They are UV-protected, impact-resistant, and lightweight. This is the last fermenter you’ll ever need to buy.
Modular by Design
Modular by Design
Start simple and grow as your passion does. Every MiniBrew™ is a "Forever System," designed to be upgraded with:
- Stainless Steel Cooling Coils for perfect temperature control.
- Tri-Clamp Fittings for a pro-level sanitary workflow.
- Sight Glass Kits for instant volume visibility.
One-Tank Mastery
One-Tank Mastery
Say goodbye to the "secondary" struggle. With our dual-port system, you can dump trub and harvest yeast from the bottom valve while your beer stays protected in one vessel. Less oxygen, less risk of infection, and a lot less cleaning.
