The Hillman Group 59734 Spring Action Hose Clamp, 1/2-Inch, 20-Pack , Gray - Amazon.com
Hillman 3-Pack 1/2-in to 1/2-in dia Steel Full Clamp in the Pipe Support & Clamps department at Lowes.com
Amazon.com: MroMax 0.75" ID Constant Tension Band Hose Clamps 19mm Spring Band Type Hose Manganese Steel Clamp Clips Clamp for Fuel Line Silicone Hose Tube Black Tone 10Pcs : Industrial & Scientific
Hillman 1 in. Deep Drawer Rubber Lined Clamp, 881297 at Tractor Supply Co.