Image may not reflect selected features Parker PGI Thermowell, 1/2in NPT x 1/2in NPT x 2.5U SKU: 21A025T31A00ACC Please Login to See Price Quantity discounts available QuantityPrice Quantity -+ Description Texas Thermowell 21 Series, 1/2" NPT Process and 1/2" NPT Instrument Connections. 2.5” U-Length, with 0.260 Internal Bore. Details 304 Stainless Steel straight shank with threaded mounting style. 0.0 lag length, 0.500 tip diameter and 0.500 root diameter. DescriptionDetails Back Texas Thermowell 21 Series, 1/2" NPT Process and 1/2" NPT Instrument Connections. 2.5” U-Length, with 0.260 Internal Bore. Back 304 Stainless Steel straight shank with threaded mounting style. 0.0 lag length, 0.500 tip diameter and 0.500 root diameter.