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A Thru Wall Thermowell is a small fitting that goes through your spa shell to help measure the temperature of your water. Inserted in the thermowell is a temperature sensor probe that connects to a Topside Command Center or a Spa Controller. This is a dry thermowell that fits a 3/8 inch temperature sensor probe, and keeps it dry.
SpaGuts P/N: 25-550-1020
Thru Wall Thermowells are a more precise way of measuring the temperature of the water in the spa than measuring the water temperature flowing through a plumbing fitting or a heater. Keep in mind that SpaGuts CS-Series temperature sensor probes must not be in direct water contact. This dry thermowell keeps the temperature sensor probe dry.
Dimensions (Approx): 3 inches long x 1-3/8 inches lip diameter. Requires a 1-1/8 inch round hole cut out for installation.
This item includes the drywell, securing nut, wall gasket, and split rubber grommet.
This thermowell is also a replacement option for the following thermowell part numbers: TW375CLB (3/8 inch), 990477-000 (3/8 inch), 9920-100163 (3/8 inch), 4-30-7001 (3/8 inch), 47-355-1090 (3/8 inch), 471381000 (3/8 inch), 59-337-1400 (3/8 inch), 400-4380 (3/8 inch), 25255-007-000 (3/8 inch), 30388WHT (3/8 inch), 610984 (3/8 inch), 30387 WHT (3/8 inch), 302173G (3/8 inch), 09-0044A (3/18 inch)
This item comes with a 90 day limited warranty, and is NON-Returnable.