Max Pressure: 120 PSI,Max Temperature: 300 Fahrenheit In-line Sight Glass with Clamp End, SUS316 body material Full bore design,Sight Glass Flow Indicators provides a full 360 to observe fluid flow in any direction. Can be used in vertical or horizontal position The Sanitary Sight Glasses are designed for sanitary applications used in the food, dairy, and pharmaceutical industries Sanitary Straight Sight Glasses are constructed with SUS316 housing, Tempered Glass and silicone seals. These In-line Sight Glasses are easier to clean. Glass: Tempered Glass In-line Sight Glass Flow Pipe OD: 51MM, Fits Tri-clamp: 2inch,full length: 161mm colour: Silver Material: Stainless steel + glass Package Contents: 4 x Glass tube mirror Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.