Ideal Tridon 62M2051 MICRO GEAR 300 GRADE SIZE20.

WORM GEAR MICRO-GEAR® 62M - Micro-Gear 62M clamps are tiny, tough and precision engineered for use in small hose applications. Their slim 5/16″ band and low profile housing make them easy to install in confined areas. Micro-Gear 62M is an all 300 grade stainless steel marine grade clamp. Material Specifications: Screw: 1/4″ Hex Head; 300 Stainless - Housing: 300 Stainless - Band: 5/16″, 300 Stainless - Installation Torque: 10 to 15 in-lbs (1.1 to 1.7 Nm) Size: No. 20 Fits Hose with Inner Diameter of: Min (in)= 3/4, Max (in)=1-3/4, Min (mm)= 19, Max (mm)= 44.