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.Knowing what I know now after using freeze dryers for my company, I can s

How loud is the freeze dryer pump? The pump operates at about 65-75 decibels, similar to a normal conversation or dishwasher. Many customers place their freeze dryer in a garage or separate room for quieter operation.The characteristic timeless design is as popular today as in the 50's. It was first developed by civil engineer Alvar Lennin.Not only