Amazon.com: 12 Pack 38mm Growler Caps Growler Lids Poly Seal Screw Caps Poly Seal Growler Caps Compatible with 1/2 Gallon and 1 Gallon Glass Gallon Jugs Replacement for Homebrew Wine Making Beer
64 oz Amber Growler PET plastic - lid not included - Walmart.com
Growler Cap, White Metal | ARTon Products
Growlers Caps & Swing Top Mechanical Lids | Glass and Growlers
38mm Poly Seal Screw Caps Growler Caps Plastic Lids Amber Boston Round Glass Beer Bottles Poly Cone Cap Brewing Wine Jug Cap Fits Most 1/2 and 1 Gallon Jugs (12 Pieces): Amazon.com:
Growler Caps 38-400 Black 64 oz | Glass and Growlers