Stainless Steel Tri-Clover Clamps used in the Brewing and Food & Beverage industries. They are now widely used by home brewers due to their safe and easy connections.
For information on how to size a Tri-Clamp fitting, Click Here and scroll to the bottom of the page.
The 1/2" and 3/4" Clamps are the same size and so are the 1" and a 1.5".
SINGLE HEAVY DUTY CLAMPS W/ WING NUT PART NUMBERS & DIMENSIONS