Tempered Borosilicate Disc Outside Diameter: 5-1/2" Thickness: 3/4" Tolerance: Please Inquire Maximum Pressure Rating: See Diagram Below Maximum Temperature Rating: 500�F Note: Pressure Ratings Based on Unsupported Diameters Model # 538 5.50-0.75

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Tempered Borosilicate Disc Outside Diameter: 5-1/2" Thickness: 3/4" Tolerance: Please Inquire Maximum Pressure Rating: See Diagram Below Maximum Temperature Rating: 500�F Note: Pressure Ratings Based on Unsupported Diameters Model # 538 5.50-0.75

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