Custom Round/Rectangular/Square Silicone Rubber Grommet Hole Split Plug/Gasket/Seal for Firewall/Wire/Appliance - China Rubber Seal and Firewall Grommet
Amazon.com: Flyshop Black 37 x 75mm, 1-1/2" x 3" Oval Rubber Grommets, Hole Plug Synthetic Rubber Grommet Wire Protection Firewall Rubber Plug, Double-Sided, 4-Pack : Industrial & Scientific