NEW PASSO A PASSO MAPA PARA FREEZE DRYER CANADA

I would prefer those fittings to have internal O rings and knurled thread on ports (similar to R134a vacuum gauge sets) that do not require high torque compression fittings. Finger tight and you are good to go. You spot a leak, change the Este ring and you're back in business.Removing the ice from between the chamber wall and the insulation (hopefu