DIN10 Gasket for Speidel Sample Valve, Thermowell and Sight Gauge Fittings

Replacement gasket for the internal seal on all DIN10 ports on Speidel Tanks. Speidel uses the same DIN10 port on all Sample Valves, Thermometer/Thermowell ports and Sight Gauge ports. Gaskets can be either blue, grey or white depending on the batch from Speidel.