The USA Lab 3 Sight glass allows for. It also has metal around the glass to hold in and better support pressure.The item "3 Tri-Clamp Sanitary Short Sight Glass With Metal Stainless 304" is in sale since Wednesday, June 5, 2019. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Dental Supplies\Lab Distillation Kits & Apparatus". The seller is "usalabequipment" and is located in Livonia, Michigan. This item can be shipped to United States, Canada.