Standard Glass Options:

• Quartz Clear (Designated by a "Q" in the model number):
  • Maximum intermittent operating temperature: 2048F
  • Maximum continuous operating temperature: 1600F (Glass Only)
• Pyrex Clear (Borosilicate Glass, designated by a "P" in the model number):
  • Maximum intermittent operating temperature: 554F
  • Maximum continuous operating temperature: 446F (Glass Only)
  • Heat strengthened for safety and coated with a heat-reflecting shield

Custom lenses are available upon request.

• Pipe Size: 4"
• Viewing Area: 3-9/16"
• A: 15-1/4" B: 4-1/4" C: 4-9/16" D: 5-5/16" E: 5-3/4" F: 9" G: 4-1/4"
• Size of Bolts: 5/8"
• Flange Bolt Circle: 8 on 7-1/2"
• PSI Rating: 5