The Sierra Female Marine 1/8" X 1/4" Reducing Nipple is a high-quality boating tank adapter designed for use on boats. Made by Sierra, a reputable brand, this adapter features a 1/8" female thread on one end and a 1/4" male thread on the other, allowing for easy conversion between the two sizes. Manufactured in China, this durable and reliable adapter is a crucial component for maintaining proper functionality in boat tanks.