Allegro 8414-11 Phase Change Inserts Pack of 4

Product Identity

The Allegro 8414-11 Phase Change Inserts come as a pack of four replacements for compatible cooling vests. Each insert freezes in a refrigerator or ice water and then delivers a constant 58°F temperature for up to three hours. The inserts are designed to fit the four pockets of the matching zip-front cotton vest which uses hook-and-loop shoulder and side straps for a secure fit. This pack suits workers or outdoor users who need spare or replacement cooling elements for an existing vest system.

Suitability & Limits

These inserts suit anyone who already owns the matching Allegro cooling vest and needs additional or replacement phase-change packs to extend daily cooling time. They are not for buyers who want a complete wearable system because the vest itself is sold separately. They are also not for users who need cooling beyond the stated three-hour duration per freeze cycle or who require a different temperature setting than the fixed 58°F output. The one-size inserts only function inside the designated four-pocket vest design.

Deciding Specification

The single specification that determines fit is the 58°F constant temperature delivery for up to three hours per freeze cycle. This fixed thermal output and duration define whether the inserts match the cooling demand of the task. If the work environment requires a lower temperature, longer runtime, or a different phase-change profile, these inserts will not meet the requirement. The pack quantity of four matches the vest pocket count exactly.