Price For: Each Number of Guard Rods: 4 Max. Temp.: 300 Degrees F Standards: ASME Body Material: Borosilicate Glass, Bronze Rod Glass Length: 36" Includes: 4 Rods; 1 Glass Tube Item: Red Line Glass Rod Kit Max. Pressure: 400 psi Glass Tube O.D.: 3/4" Center to Center Length: 38" Country of Origin (subject to change): United States