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Showing 289–336 of 67605 resultsSorted by popularity

10″ Round TrueZONE Bypass Damper

Resideo

SKU: CPRD10
$108.95
Honeywell CPRD10 10in TrueZONE Round Bypass Damper quantity
ElitePRO S1200 Smart Thermostat With Room Sensor In Black

Honeywell Home

SKU: YTHX1200B6
$236.47
Honeywell Home YTHX1200B6 ElitePRO S1200 Smart Thermostat With Room Sensor In Black quantity
Zephyr 20 x 30 x 3 MERV 13 Return Grille Filter

Zephyr

SKU: M1332030
$46.99
MSRP: $54.04
You save 15%
Zephyr 20 x 30 x 3 MERV 13 Return Grille Filter quantity
Steam replacement cylinder for regular & low water conductivity

GeneralAire

SKU: 55
$169.99
MSRP: $247.44
You save 31%
GeneralAire 55 Steam Replacement Cylinder for Model 5500 Humidifier quantity
Rectangular Trane / American Standard Compatible Dampers

iO HVAC Controls

SKU: TD-XXXX
Price range: $219.84 through $516.74
Select options
This product has multiple variants. The options may be chosen on the product page
Heat Only 24V Programmable Thermostat, Mercury-Free

Braeburn

SKU: 505
$18.50
MSRP: $21.28
You save 15%
Braeburn 505 Heat-Only 24V Mechanical Thermostat quantity
Multi-stage Wi-Fi Thermostat with IAQ Relay, 2H/2C or 4H/2C

Aprilaire

SKU: S86WMUPR

Rated 5.00 out of 5
$210.99
AprilAire S86WMUPR Wi-Fi Programmable Smart Thermostat with IAQ Control quantity
Adapter plate for mounting fan coil thermostats to junction boxes

Resideo

SKU: 50033847-001

Rated 5.00 out of 5
$16.65
Honeywell 50033847-001 Adapter Plate for Fan Coil Thermostat Mounting quantity
RedLINK Outdoor Temperature And Humidity Sensor For T10+

Resideo

SKU: C7089R3013
$104.32
Honeywell Home C7089R3013 RedLINK Outdoor Temperature And Humidity Sensor For T10+ quantity
45in-lb Non-Spring Return Damper Actuator

Belimo

SKU: LMB24-3-T
$114.30
Belimo LMB24-3-T 45in-lb Non-Spring Return Damper Actuator quantity
Single-Stage Non-Programmable Thermostat, 1H/1C

White-Rodgers

SKU: 1F78-144
$29.28
White-Rodgers 1F78-144 Single-Stage Non-Programmable Thermostat, 1H/1C quantity
Comfort System 3H/2C Universal 7-Day Programmable Thermostat

iO HVAC Controls

SKU: T-32-P

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Aprilaire S84NSU 1H/1C Single Stage Universal Thermostat

Aprilaire

SKU: S84NSU
$99.99
Aprilaire S84NSU 1H/1C Single Stage Universal Thermostat quantity
Shurtape 232622 AF 099 UL 181A-P/B-FX Silver Aluminum Foil Tape, 60YD x 2.5IN

Shurtape

SKU: 232622
$22.92
MSRP: $26.36
You save 15%
Shurtape 232622 AF 099 UL 181A-P/B-FX Silver Aluminum Foil Tape, 60YD x 2.5IN quantity
18 AWG 2 Conductor Thermostat Wire

Genesis

SKU: 18/2-TW

Rated 5.00 out of 5
Price range: $15.16 through $80.79
Select options
This product has multiple variants. The options may be chosen on the product page
Universal Water Heater Gas Valve, 1″ Insulation Tank, 5″ WC

Resideo

SKU: WT8840B1000

Rated 4.71 out of 5
$206.00
Honeywell WT8840B1000 Water Heater Gas Valve Replacement quantity
1P / 40A / 24V Contactor

Packard

SKU: C140A

Rated 5.00 out of 5
$13.05
MSRP: $15.01
You save 15%
Packard C140A 1P / 40A / 24V Contactor quantity
Replacement wall plate for Sensi Touch 2 & Sensi Lite thermostats, white

White-Rodgers

SKU: SA6W
$5.24
MSRP: $6.03
You save 15%
Copeland SA6W Thermostat Wall Plate for Sensi Touch 2 & Sensi Lite Thermostats quantity
Equipment Interface Module Kit with 2 duct sensors

Resideo

SKU: YTHM5421R1010
$104.99
Honeywell YTHM5421R1010 RedLINK Equipment Interface Module, 2 Sensors quantity
Universal Actuator Kit for Carrier Dampers

Belimo

SKU: CB-KIT
$127.37
iO HVAC Controls CB-KIT Universal 15-Second Retro Actuator Kit for Carrier, Bryant & Comfortmaker Zone Dampers quantity
Titan ProCap 7.5 MFD, 440/370V, Oval Run Capacitor

Packard

SKU: TOCF7.5
$2.79
MSRP: $3.21
You save 15%
Packard TOCF7.5 Titan ProCap 7.5 MFD, 440/370V, Oval Run Capacitor quantity
2.5 ft sampling tube for SL-2000 Series duct smoke detectors

Air Products and Controls

SKU: STN-2.5
$12.49
MSRP: $14.36
You save 13%
Air Products and Controls STN-2.5 2.5 ft Sampling Tube for SL-2000 Series Duct Smoke Detectors quantity
Package Quantity: Single Pack

Aprilaire

SKU: 35
$16.99
Aprilaire Water Panel 35 - Replacement Humidifier Panel - Single Pack quantity
Universal 4H/2C, Non-Programmable Thermostat

White-Rodgers

SKU: 1F85U-42NP

Rated 5.00 out of 5

$68.84Add to Cart for Savings

White-Rodgers 1F85U-42NP Universal Non-Programmable Thermostat, 4H/2C quantity
DPDT Relay for Handy Box Mounting 24 Vac or 120 Vac W/track

iO HVAC Controls

SKU: RY-2

$27.55Add to Cart for Savings

DPDT Relay for Handy Box Mounting 24 Vac or 120 Vac W/track quantity
3-Zone 3H/2C Control Panel Kit w/ Sensor, 40VA Transformer

iO HVAC Controls

SKU: ZP3-HPS-KIT
$212.56
iO HVAC Controls ZP3-HPS-KIT 3-Zone 3H/2C Control Panel Kit quantity
Manual 4 Wire Premium Baseboard/Line Volt Retail Thermostat

Honeywell Home

SKU: CT410B1017
$11.53
Read more
ZD-XX Heavy-Duty Commercial Modulating Damper

iO HVAC Controls

SKU: ZD-XX
Price range: $271.39 through $448.83
Select options
This product has multiple variants. The options may be chosen on the product page
Disconnect,A/C Swh,60a,nonfuse

Eaton

SKU: DPB222R
$49.99
MSRP: $57.49
You save 15%
Eaton DPB222R Disconnect,A/C Swh,60a,nonfuse quantity
3-Zone Universal Zone Control Panel with ESP

iO HVAC Controls

SKU: ZP3-ESP
$362.30
iO HVAC Controls ZP3-ESP 3-Zone Universal 3H/2C Zone Panel with ESP quantity
Concentric Vents, Multiple Sizes,

DiversiTech

SKU: CVENT

Rated 5.00 out of 5
Price range: $34.50 through $119.75
Select options
This product has multiple variants. The options may be chosen on the product page
FS-38 Suction Line Freeze Thermostat

iO HVAC Controls

SKU: FS-38
$25.77
iO HVAC Controls FS-38 Suction Line Freeze Thermostat quantity
2 Year 15″ Ultraviolet Replacement Lamp

Fresh-Aire UV

SKU: TUVL-215

Rated 5 out of 5
$109.99
MSRP: $126.49
You save 15%
FreshAire TUVL-215 2 Year 15in Ultraviolet Replacement Lamp quantity
iWave-R Residential Air Ionization System – (24-240VAC / Up To 6 Tons / 2,400 CFM)

Nu-Calgon

SKU: 4900-20
$383.77
MSRP: $647.94
You save 41%
Nu-Calgon 4900-20 iWave-R Residential Air Ionization System – (24-240VAC / Up To 6 Tons / 2,400 CFM) quantity
Multi-Pleat 16″ x 20″ x 4″ Air Filter, MERV 8

Koch Filter Corporation

SKU: 102-700-025

Rated 5.00 out of 5
$22.21
MSRP: $25.54
You save 15%
Koch 102-700-025 16x20x4 MERV 8 Multi-Pleat XL8 Air Filter quantity
Universal WiFi smart thermostat, 2H/2C multi-stage, 7-day programmable

Pro1 IAQ

SKU: T855ISH

Rated 5 out of 5
$168.99
MSRP: $310.09
You save 46%
PRO1 IAQ T855iSH Universal WiFi Smart Thermostat – 2H/2C Multi-Stage, 7-Day Programmable quantity
Digital non-programmable thermostat for heat only or cool only, 24V

Pro1 IAQ

SKU: T771

Rated 5.00 out of 5
$43.15
MSRP: $85.20
You save 49%
PRO1 T771 Digital Non-Programmable Thermostat, 1H/1C, Single Stage, 24V quantity
Electromechanical Relay W/ 24V – 120V Transformer

Resideo

SKU: RC840T-120
$69.53
Resideo/Honeywell AUBE RC840T-120 Electromechanical Relay W/ 24V - 120V Transformer quantity
Multi-stage programmable thermostat with remote sensor support

Pro1 IAQ

SKU: T755S
$124.99
MSRP: $222.79
You save 44%
PRO1 T755S Digital 7-Day/5-1-1 Programmable Thermostat, 2H/2C, Wired Remote Sensor Compatible quantity
115V Medium Condensate Pump with Safety Switch, 22ft Max Lift

Beckett

SKU: BK221UL
$49.99
MSRP: $57.49
You save 15%
Beckett BK221UL 115V Medium Condensate Pump with Safety Switch, 22ft quantity
2-Zone 1H/1C Control Panel Kit w/ Sensor, 40VA Transformer

iO HVAC Controls

SKU: ZP2-HC-KIT
$167.31
iO HVAC Controls ZP2-HC-KIT 2-Zone 1H/1C Control Panel Kit quantity
3/4″ NPT Pressure Regulating Valve, Single

Resideo

SKU: DS06-101-SUT-LF
$92.57
Honeywell DS06-101-SUT-LF 3/4in NPT Pressure Regulating Valve, Single quantity
Carbon Monoxide Plug-In Alarm with Battery Backup

BRK

SKU: CO605B
$29.95
Read more
16x25x5 MERV 11 Replacement Cartridge Media Filter

Field Controls

SKU: 46568500
$28.35
MSRP: $32.60
You save 15%
Field Controls 46568500 (FCRM11-1625) 16x25x5 MERV 11 Replacement Cartridge Media Air Cleaner Filter quantity
Universal Twinning Kit with 20VA Transformer

iO HVAC Controls

SKU: iO-TWIN-TR

Rated 5.00 out of 5

$286.71Add to Cart for Savings

iO HVAC iO-TWIN-TR Universal Twinning Kit with 20VA Transformer quantity
Solenoid with Continuous Duty (120-105711)

White-Rodgers

SKU: 120-105711

Rated 5.00 out of 5
$26.23
MSRP: $49.63
You save 47%
White-Rodgers 120-105711 Solenoid with Continuous Duty quantity
Heat or Cool Line Voltageage Thermostat

TPi

SKU: ETD9STS

Rated 5.00 out of 5

$35.20Add to Cart for Savings

TPi ETD9STS Heat or Cool Line Voltage Thermostat quantity
Flue Cap For 1-1/2in, 2in, 3in PVC Pipe

Supco

SKU: ECAP321
$8.40
MSRP: $9.66
You save 15%
Supco ECAP321 Flue Cap For 1-1/2in, 2in, 3in PVC Pipe quantity