316 SS Thermowell for 3.5" stem 7" & 9" industrial liquid-in-glass thermometers with a tapered bore, 1-1/4"-18 UNF instrument connection x 3/4" NPT M process connection.TRDW102 316SS 1-1/4"-18 UNF x 3/4" NPT M tapered boreSKU: TRDW102$45.40PriceQuantityAdd to CartBuy Now