Single Rubber Grommet for use with Airlocks Rubber Grommets are used to hold securely hold airlocks in brewing bin lids and demijohn lids From £0.89 Rubber Grommet Options: [Choose]1130 - Black Flat O'ring Style Grommets1131 - Red Cone shaped Grommets (+£0.30) Quantity: at £0.89 each Add To Basket 16 in stock. 0 in your basket View Basket Checkout