4 inch PVC Coupler: Threaded end fits our 4 inch hose, while the opposite end is flared for easy connection to standard 4'' tool ports. The pack comes with (1) of Dust Right Flared Quick Coupler, 4'' Port to 4'' Hose Effortless, Portable Dust Collection System: Easily connect or disconnect woodworking dust collection system equipment to a 4" dust collector port with our Flared Quick Coupler. No-hassle setup! Versatile Compatibility: Designed for use with a clear and blue dust collector hose 4 inch, this flared quick coupler ensures a secure fit with standard 4" dust ports on various machines. Secure Connection: Featuring right-handed threading on the 4 dust collection hose end, our coupler ensures a tight and reliable connection every time. Precise Specifications: With a threaded length of 2-7/8", an outer diameter of 4", and an inner diameter of approximately 4", it's engineered for a perfect fit. Hose clamps (sold separately) complete the package. Dust Right Flared Quick Industrial Coupler, 4'' Port to 4'' Hose: Our flared quick coupler is a versatile and essential addition to your woodworking equipment. Designed for use with 4'' hoses and hose clamp (sold separately), this dust right dust collector coupler simplifies your woodworking setup. The flared end of our 4 inch duct connector ensures swift and hassle-free connections and disconnections to any woodworking machine or fitting featuring a standard 4'' dust port. Crafted with precision, our 4 inch dust collection fittings flared quick coupler is compatible with both 4'' clear hose and 4'' blue hose, offering flexibility in your workshop. With its right-handed connecting threads on the hose end, you can trust in secure and stable connections. Measuring with a threaded length of 2-7/8'', an outer diameter of 4'' on the threaded end, and an inner diameter of approximately 4'' on the flared end, this dust collection hose 4 inch coupler is designed for durability and reliability. Upgrade your woodworking experience today with the flared quick coupler – your solution for efficient dust extraction and seamless machine connections. --- About Us: The history of Rockler Woodworking and Hardware goes back to 1954, when Norton Rockler started the Minnesota Woodworkers Supply Company in north Minneapolis. It was a small mail-order business with a big aspiration – to become woodworkers' go-to resource for everything they need to complete their projects.