Mini Brew Tank Works

O-Ring Red Buna for 4" Fermenter Lid

$3.50
 0 Shipping Options Available

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.

  • Size: 4" diameter

  • Material: Food-grade (FDA approved) U.S. Food and Drug Administration compliant

  • Designed for: MiniBrew® threaded lid groove (won’t fall out) MiniBrew

  • History: Standard equipment on fermenters made in the mid-2010s