AllPoints Foodservice Parts & Supplies 85-1158 is a high-quality fiberglass sleeve designed for use with electronic controls and thermostatic systems. This 100-foot length of 3/8" insulation provides effective protection for capillary tubes, ensuring optimal performance and durability. Ideal for maintaining accurate temperature control in foodservice equipment, this fiberglass sleeve is a reliable choice for enhancing the efficiency of your thermostatic controls.