Precision Brand QR48HS Quick Release All Stainless Worm Gear Hose Clamp, 1-1/2" - 3-1/2" (Pack of 10) Series 300 stainless steel band helps provide resistance to corrosion Stainless steel screw resists corrosion Quick release screw swivels to lock or disengage the clamp Band width of 1/2" for secure sealing area