Wilmad LG-1453-100 PTFE Thermometer Adapter with Compression Cap, 10/18 Standard Taper Joint: Amazon.com: Industrial & Scientific
Amazon.com: Viton Sheet Rubber – High Performance, High Temperature, Chemical Resistant, Much More - Commercial Grade 75A+/-5 Medium Hardness, Cinnamon Scented 125x6x6 : Industrial & Scientific