Size 1 Type A, Plain 4-1/2" Gauge Glass | Designed For Moderate-Pressure and Liquid Level Indicators
THICKNESS RANGE: .656" - .688"
MAX WORKING PRESSURE,
PSI STEAM BOILER (NO MICA): 400
MAX WORKING PRESSURE,
PSI STEAM BOILER (W/ MICA): 1500
MAX WORKING PRESSURE,
PSI NON STEAM (-150°F TO 150°F): 5000