The TE Connectivity / AMP Brand part 2221478-2 is a Fas-T Protective Cover designed in a convenient ratchet style. This durable and versatile cover provides excellent protection for your electrical connectors, safeguarding them from dust, moisture, and other potentially harmful elements. With its easy-to-use ratchet mechanism, it allows for quick and secure installation, ensuring a reliable and long-lasting connection. Whether it's for industrial or residential applications, this Fas-T Protective Cover is a must-have accessory to enhance the performance and longevity of your electrical connectors.