The 13.3 Oetiker Clamp is a stepless ear clamp that is perfect for beverage gas systems. Manufactured to DIN3017 Standard, this clamp features a smooth underside and bevelled edges that protect the hose from damage. Each package contains 100 pieces of clamps that can be used with APX-170-04502-00 and APX-176-04502. With a range of 0.425 to 0.524 inches, these clamps are ideal for a variety of applications.