HEAVY DUTY COUNTERFLOW CHILLER WITH ALL METAL CONSTRUCTION & LARGE DIAMETER CONVOLUTED TUBING. THIS CHILLER IS THE IDEAL UPGRADE IF YOU ARE TIRED OF WAITING FOR YOUR IMMERSION CHILLER TO DO THE JOB. COUNTER FLOW CHILLING IS VERY EFFICIENT, SAVING WATER & TIME. ALL COPPER CONSTRUCTION MAXIMIZES THERMAL CONDUCTIVITY. WORKS GREAT WITH A PUMP OR BEING GRAVITY FED. CALL OR EMAIL ME, I WILL GET BACK TO YOU.