304 Stainless-Steel Hose Clamp, 3-1/8" to 4", SAE Size 56 from NORMA
With 9mm-wide (3/8") non-perforated bands, and made of stainless steel, these clamps feature rolled-up edges to prevent hose damage. We recommend two clamps per hose end below the waterline. Hoses are measured by inside diameter, so select a clamp with a maximum opening at least 1/4" larger. Designed to evenly distribute tension force . Work well in many different applications with a high mechanical load .