TRDW108 3.5" 1-1/4"-18 UNF x 1/2" NPT tapered bore 1" lag for 3.5" stem, 7" or 9" industrial liquid-in-glass thermometers.TRDW108 3.5" 1-1/4"-18 UNF x 1/2" NPT tapered bore 1" lag.SKU: TRDW108$16.04PriceQuantityAdd to CartBuy Now