The 16Rubber Cap by Fittings Unlimited Inc is a high-quality protective cap designed for 16mm fittings. Made from durable rubber, this cap provides a secure seal to prevent dust and debris from entering your fittings, ensuring optimal performance. Its flexible design allows for easy installation and removal, making it a practical choice for maintenance and repairs. This cap is ideal for use in various applications, including plumbing and hydraulic systems, where protection of fittings is essential. With its reliable construction, the 16Rubber Cap is a must-have for any professional toolkit.