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130 items
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Circuit Board, for 700/760/768 Humidifier
Circuit Board, for 700/760/768 Humidifier
Part #4238
MFG #4238
Aprilaire
Is Active
Is Active
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Circuit Board, Replacement for HE150 TrueEASE
Circuit Board, Replacement for HE150 TrueEASE
Part #50057547-002/U
MFG #50057547-002/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
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Circuit Board, Replacement for HE250 TrueEASE
Circuit Board, Replacement for HE250 TrueEASE
Part #50057547-003/U
MFG #50057547-003/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
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Circuit Board, Replacement for HE300 TrueEASE
Circuit Board, Replacement for HE300 TrueEASE
Part #50057547-001/U
MFG #50057547-001/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
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Control Board Kit, For Aprilaire 1710A, 1750A,1770A Dehumdifier
Control Board Kit, For Aprilaire 1710A, 1750A,1770A Dehumdifier
Part #5353
MFG #5353
Aprilaire
Is Active
Is Active
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Control Board, for 800/865 Steam Humidifiers
Control Board, for 800/865 Steam Humidifiers
Part #5530
MFG #5530
Aprilaire
In Stock
In Stock
Is Active
Is Active
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Controller, 24V AutoTrac Humidistat
Controller, 24V AutoTrac Humidistat
Part #56
MFG #56
Aprilaire
Series-Brand
Aprilaire
Type
Controller
Voltage
24V
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Current Sensing Relay, for TrueSTEAM Humidifiers HE120, HE225, HE265, HE365
Current Sensing Relay, for TrueSTEAM Humidifiers HE120, HE225, HE265, HE365
Part #32001876-001/U
MFG #32001876-001/U
Resideo / Honeywell Home
Type
Current Sensing Relay
Is Active
Is Active
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Circuit Board, for 700/760/768 Humidifier
Circuit Board, for 700/760/768 Humidifier
Part #4238
MFG #4238
Aprilaire
Is Active
Is Active
Sign In for pricing and availability
Circuit Board, Replacement for HE150 TrueEASE
Circuit Board, Replacement for HE150 TrueEASE
Part #50057547-002/U
MFG #50057547-002/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
Sign In for pricing and availability
Circuit Board, Replacement for HE250 TrueEASE
Circuit Board, Replacement for HE250 TrueEASE
Part #50057547-003/U
MFG #50057547-003/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
Sign In for pricing and availability
Circuit Board, Replacement for HE300 TrueEASE
Circuit Board, Replacement for HE300 TrueEASE
Part #50057547-001/U
MFG #50057547-001/U
SPECIAL ORDER - CONTACT STORE FOR LEAD TIME
Resideo / Honeywell Home
Sign In for pricing and availability
Control Board Kit, For Aprilaire 1710A, 1750A,1770A Dehumdifier
Control Board Kit, For Aprilaire 1710A, 1750A,1770A Dehumdifier
Part #5353
MFG #5353
Aprilaire
Is Active
Is Active
Sign In for pricing and availability
Control Board, for 800/865 Steam Humidifiers
Control Board, for 800/865 Steam Humidifiers
Part #5530
MFG #5530
Aprilaire
In Stock
In Stock
Is Active
Is Active
Sign In for pricing and availability
Controller, 24V AutoTrac Humidistat
Controller, 24V AutoTrac Humidistat
Part #56
MFG #56
Aprilaire
Series-Brand
Aprilaire
Type
Controller
Voltage
24V
Sign In for pricing and availability
Current Sensing Relay, for TrueSTEAM Humidifiers HE120, HE225, HE265, HE365
Current Sensing Relay, for TrueSTEAM Humidifiers HE120, HE225, HE265, HE365
Part #32001876-001/U
MFG #32001876-001/U
Resideo / Honeywell Home
Type
Current Sensing Relay
Is Active
Is Active
Sign In for pricing and availability

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Prices and specifications are subject to correction or change without notice. | Gustave A. Larson Company reserves the right to accept or reject any order.
Images are representative of product lines but may not be actual item. | Copyright © 2025 Gustave A. Larson Company. All rights reserved.