Keep your Petersen automatic waterer running smoothly with the #10.5 Drain Plug (Part #100-0012). This heavy-duty rubber plug creates a secure, leak-proof seal, ensuring reliable water retention for your livestock. Specifically designed for Petersen waterers, it fits perfectly and is built for long-term durability. Whether you're replacing a worn-out plug or stocking up on spares, this essential part makes maintenance simple and hassle-free.