Wells / Immersion Wells / Thermowells

Wells and Thermowells protect temperature sensors in hydronic systems from harsh conditions while ensuring accurate readings. These protective tubes extend sensor life and allow safe maintenance without system shutdown. Jackson Systems stocks Wells in multiple lengths and thread sizes – find the exact fit for your hydronic application today.

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Showing 145–160 of 160 resultsSorted by popularity

Immersion Well, 3/4″ NPT, for 3-1/2″ x 7/16″ Bulb

Copeland

SKU: F89-0033
$47.75
MSRP: $54.91
You save 15%
Copeland White-Rodgers F89-0033 Immersion Well, 3/4" NPT, for 3-1/2" x 7/16" Bulb quantity
Immersion Well, 1/2″ NPT, for 1609 / 1629 / 2A23 Controls

Copeland

SKU: F89-0027
$40.83
MSRP: $46.95
You save 15%
Copeland White-Rodgers F89-0027 Immersion Well, 1/2" NPT, for 1609 / 1629 / 2A23 Controls quantity
Thermowell Assembly, 3/4″ NPT x 4-1/2″ Insertion Length

United Electric

SKU: SD6225-76
$174.80
MSRP: $201.02
You save 15%
United Electric SD6225-76 Thermowell Assembly, 3/4" NPT x 4-1/2" Insertion Length quantity
Brass Thermowell – 1/2″ NPT, 4″ Insertion

United Electric

SKU: SD6225-75
$118.85
MSRP: $136.68
You save 15%
United Electric SD6225-75 Brass Thermowell – 1/2" NPT, 4" Insertion quantity
1/2″ NPT Standard Electro-Well with Nut for Low Water Cut-Off Activation

Hydrolevel

SKU: EW221
$33.53
MSRP: $38.56
You save 15%
Hydrolevel EW221 1/2" NPT Standard Electro-Well with Nut for Low Water Cut-Off Activation quantity
3/4″ NPT Extended Electro-Well with Long Nut for Tankless Coil Burners

Hydrolevel

SKU: EW202
$42.78
MSRP: $49.20
You save 13%
Hydrolevel EW202 3/4" NPT Extended Electro-Well with Long Nut for Tankless Coil Burners quantity
3/4″ NPT Standard Electro-Well with Nut for Low Water Cut-Off Activation

Hydrolevel

SKU: EW201
$33.53
MSRP: $38.56
You save 15%
Hydrolevel EW201 3/4" NPT Standard Electro-Well with Nut for Low Water Cut-Off Activation quantity
3/4″ NPT Threaded Thermowell, 2-1/2″ Insertion Length

Ashcroft

SKU: 75W0250ST260C
$66.71
MSRP: $76.72
You save 15%
Ashcroft 75W0250ST260C 3/4" NPT Threaded Thermowell, 2-1/2" Insertion Length quantity
Well

Trane

SKU: WEL0848
$39.16
MSRP: $45.03
You save 15%
Trane WEL0848 Well quantity
Honeywell 50001774-001 Stainless Steel Immersion Well

Honeywell Home

SKU: 50001774-001
$39.90
MSRP: $45.89
You save 15%
Honeywell 50001774-001 Stainless Steel Immersion Well quantity
Copper Well Assembly

Resideo

SKU: 123870A/B
$28.80
MSRP: $33.12
You save 15%
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Honeywell 112630AA Copper Well Assembly

Honeywell Home

SKU: 112630AA
$101.11
MSRP: $116.28
You save 15%
Honeywell 112630AA Copper Well Assembly quantity
Honeywell 123872A/B Copper Well Assembly

Honeywell Home

SKU: 123872A/B
$33.99
MSRP: $42.03
You save 19%
Honeywell 123872A/B Copper Well Assembly quantity
Honeywell 123872A Copper Well Assembly

Resideo

SKU: 123872A
$70.03
MSRP: $80.53
You save 15%
Honeywell 123872A Copper Well Assembly quantity
Honeywell 121371AA Well Clamp Assembly

Resideo

SKU: 121371AA
$7.30
MSRP: $15.12
You save 52%
Honeywell 121371AA Well Clamp Assembly quantity
Honeywell 121371M Copper Well Assembly

Resideo

SKU: 121371M
$51.61
MSRP: $59.35
You save 13%
Honeywell 121371M Copper Well Assembly quantity