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Showing 289–336 of 65995 resultsSorted by popularity

Ultra Whip, Non-Metallic, 1/2″ x 6 ft

DiversiTech

SKU: 6-12-6NM
$24.50
MSRP: $28.18
You save 15%
DiversiTech 6-12-6NM Ultra Whip, Non-Metallic, 1/2" x 6 ft 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
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
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
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
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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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
CO Alarm, Plug-In + 2 AA Backup Batteries

Kidde

SKU: COP (21033777)
$34.97
MSRP: $40.22
You save 15%
Kidde Model COP CO Alarm, Plug-In + 2 AA Backup Batteries, UL 2034 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
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
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
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
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
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 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
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
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
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
Manual 4 Wire Premium Baseboard/Line Volt Retail Thermostat

Honeywell Home

SKU: CT410B1017
$11.53
Read more
Equipment Interface Module Kit with 2 duct sensors

Resideo

SKU: YTHM5421R1010
$104.99
Honeywell YTHM5421R1010 RedLINK Equipment Interface Module, 2 Sensors 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
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
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
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
Aprilaire S84NSU 1H/1C Single Stage Universal Thermostat

Aprilaire

SKU: S84NSU
$99.99
Aprilaire S84NSU 1H/1C Single Stage Universal Thermostat 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
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
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
Carbon Monoxide Plug-In Alarm with Battery Backup

BRK

SKU: CO605B
$29.95
Read more
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
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
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
Package Quantity: Single Pack

Aprilaire

SKU: 35
$16.99
Aprilaire Water Panel 35 - Replacement Humidifier Panel - Single Pack 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
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
ICM Controls ICM493-60A Single-Phase Line Voltage Monitor

ICM Controls

SKU: ICM493-60A

Add to Cart for Savings

ICM Controls ICM493-60A Single-Phase Line Voltage Monitor quantity
Cover Plate for T-Series Thermostats

Resideo

SKU: THP2400A1080
$17.00
Read more
120VAC Utility Motor for C-Frame and 3.5″ Round Motors

Supco

SKU: SM670

Rated 5.00 out of 5
$12.40
MSRP: $14.26
You save 15%
Supco SM670 120 Volt Utility Motor Kit 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
5ft sampling tube for SL-2000 series duct smoke detectors

Air Products and Controls

SKU: STN-5.0
$21.99
MSRP: $25.29
You save 13%
Air Products and Controls STN-5.0 5ft Sampling Tube for SL-2000 Duct Smoke Detectors quantity
Trion 259112-105 Air Bear 16X25X5 MERV-11 Air Filter

Trion IAQ

SKU: 259112-105

Rated 4.00 out of 5
$36.25
MSRP: $41.69
You save 15%
Trion 259112-105 Air Bear 16X25X5 MERV-11 Air Filter 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