Honeywell 121371B

Honeywell Well Assembly, 3/4-14 NPT Well Spud, 3 Inch Insertion Length, 3/8 Inch Shell, 1-1/2 Inch Insulation Depth, 5/64 Inch Capillary, Copper, Includes: Mounting Clamp

Honeywell 121371B immersion wells allow heat transfer while protecting sensing bulb from controlled medium and seal off tapping to permit bulb removal without draining the boiler.