Heat Transfer Plates

Radiant Heat Transfer Plates, 4 ft Aluminum PEX Heat Transfer Plates, 1/2 inch Heat Transfer Plates Designed for PEX Tubing.

$2.45/each.

Only buyable in stacks of 50. $122.50. 

Each order is a stack of 50.

Why/how do use staple up PEX flooring? This article from HPAC magazine has some good answers https://www.hpacmag.com/features/higher-performing-heated-floors/