NO MORE TOOLS! – Set your tools aside when installing your ductwork or hose with these handy, easy to tighten hose/duct clamps. Place the clamp where its needed then simply turn the key to loosen or tighten them.

LARGE EASY TO TURN KEY - The easy to turn and easy to see blue key is made from a strong and durable polymer. The key is designed to make the securing and un-securing of hose much easier on the knuckles. No more knuckle busting flat head screw drivers or tiny socket wrenches. Simply to turn the key clockwise to tighten, counter clockwise to loosen.

OFTEN USED IN THESE APPLICATIONS – These unique clamps are typically used in securing duct work, dryer vents, dust collection hoses, piping, large cable, pvc tubing and more. Ideal for use in automotive, industrial, mechanical, agriculture, boat/marine, shield, recreational vehicles, household and more. Works for both indoor or outdoor use.

304 STAINLESS STEEL HOSE CLAMP- The 4” diameter large hose duct clamp (including the housing, the band and the internal screw are made from premium 304 stainless steel. This makes the clamp strong, durable and rust resistant which makes it ideal for many applications in the shop or around the home.

FLEXIBLE ADJUSTABLE SIZE RANGE- 4 inch hose clamps are flexible and workable with a rather wide adjustable size range from appx. 4-7/16” (4.440” or 112.77mm) in full diameter down to appx. 3-7/16” (3.440” or 87.32mm) at its most compact diameter.