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Teflon Gauge Glass Washers 12 Pack | Temperatures up to 450℉ | Used for Boiler Liquid Level Sight Glass Applications (3/4" x 1-1/4" x 1/2")

TFE with Hypalon Gauge Glass Washers 12 Pack | Used for Boiler Liquid Level Sight Glass Applications (5/8" x 15/16" x 7/16")

Grafoil Graphite Gauge Glass Washers 12 Pack | Large Temperature Range 650 PSI at 975℉ | Used for Boiler Liquid Level Gauge Glass Applications (5/8" x 7/8" x 5/16")

Conbraco Graphite Split Washers 6 Pack | Temperatures up to 550℉ | for Conbraco 20 Series Liquid Level Gauge Valves

Grafoil Graphite Gauge Glass Washers 12 Pack | Large Temperature Range 650 PSI at 975℉ | Used for Boiler Liquid Level Gauge Glass Applications (3/4" x 1-1/8" x 3/8")

Teflon Gauge Glass Washers 12 Pack | Temperatures up to 450℉ | Used for Boiler Liquid Level Sight Glass Applications (5/8" x 7/8" x 7/16")