Dundas Jafine Plastic Clamp is i for use with flexible duct, providing a secure and reliable hold. It features a quick-release, self-locking system that makes installation and removal easy and efficient. Designed to fit 3" and 4" ducts, this clamp comes in a retail bag containing two clamps. Made from durable plastic, it ensures long-lasting performance and versatility for your ducting needs. Model Number: 2C234Z