Shell & Tube — Reactor Tee

A shell-and-tube heat exchanger in section — tubes, baffles, and counter-flow. Heat, traded efficiently.

Cold wash inside out, hang dry — durability shows in washes, not adjectives. Printed on a Comfort Colors heavyweight tee with a soft, broken-in feel.

Buying it as a gift? To an engineer it's a piece they'll actually recognize; to everyone else it's simply a clean, well-made shirt. Questions? a real person reads care@lunthra.com.