Thermowell, Thru-Wall Spa Drywell

Mini Thermowell Assembly is a high quality through-wall spa drywell for accurate thermostat temperature control.

Includes: Drywell Nut Wall gasket Split rubber bulb bushing

Product notes: Ideal for 5/16" temperature sensor bulbs (probe not included). Mounting hole: 1 1/8". For accurate temperature sensing, locate dry well at an average water depth, midway between waterline and bottom of spa. Grey.