Plenum Stat Wire Hercules offers premium stat wire which is a class 2 power-limited circuit cable for use in thermostat control applications. SKU PW185 Product Details | Specifications | Check Inventory Please select 18/5 PLENUM WIRE 250'/RL WHITE18/6 PLENUM WIRE 250'/RL WHITE18/8 PLENUM WIRE 250'/RL WHITE Log in to view price