Beer Homebrew Filter Bag For Brewing Malt, Boiling Wort Mash Strainer Tool. Features: For All Grain Brewing Malt Filter to Easy Get Clear Wort. For High Effective Brewing. High Temperature Resistance, Food Grade. Reusable When You Finish Brewing Please Pour Clear The Malt. Or Next Time the Bag Will Be Ferment More Tasty Than Beer. Since the Bag is Hand Made There Will Be a Size Different Range Between -2---3cm. Specifications: Sizes: The Size is According to Russian Tank. For Example to 37L Tank Diameter is 36cm. Please Choose Diameter 40 Cm Bag or Larger. Please According the Diameter. Bags Dimeter Need a Little Larger Than the Tank, So It Will Fit Well. . We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.