Shipping Offer

Shop SDS

Savings

Customer Service

Buy at SDS Supply Free Shipping Same Day Shipping Low Price Guarantee MyREWARDS No Sales Tax 30 Day Money-Back Guarantee Availability Privacy and Security Shipping Worldwide
Join our mailing list!


 
You are here: Home > HVAC Products
Air Elimination Air Quality Exhaust Fans
Air Elimination
Air Elimination products including expansion tanks, air scoops, air vents, and more. 
Air Quality
A variety of products such as UV lights, Air purifiers, and air filters.  Help make your home or work area more healthy by eliminating airborne contaminants.
Exhaust Fans
A variety of exhaust fans for all types of applications including ceiling exhaust fans, roof mount exhaust fans, and greenhouse fans.
Fan Relay Fittings Float Switch's
Fan Relays
Provide general purpose and heavy duty switching for refrigeration and air conditioning equipment, appliances, vending machines and similar applications.
Fittings
A variety of fittings for HVAC including venturi tee fittings and transitional fittings.
Float Switches and accessories by AquaGuard.  Great protection for High efficiency condensing units.
Flow Control Furnace Parts Heaters
Flow Control
Flo Chek and Flow switches designed to create and control individual zones or isolate equipment in a hydronic heating system.
Furnace Parts
A large selection of replacement furnace parts.
Heaters
Heaters for the home. A large slection of portable heaters including fireplace heaters and other electric heaters.
Low Water Cutoff Mixing Valves Pressure Valves
Low Water Cutoff
Low Water Cutoffs provide accurate and dependable protection for all types of boilers, from small residential hot water boilers to large industrial steam units.
Mixing Valves
A variety of economical mixing and diverting valves used in residential and commercial heating & cooling systems.
Pressure Valves
Pressure valves used to automatically feed water to a system whenever pressure in the system drops below the pressure setting of the valve.
Radiator Valves & Operators Switching Relays Thermostats
Radiator Valves & Operators
Radiator parts including Air Valves, Non-Electric Radiator Thermostats, and Operators
Switching Relays
Switching Relays combine clearly-labeled PC board layouts with advanced features that allow you to completely customize your system.
Thermostats
A large selection of thermostats in many styles and colors.  Provide electronic control of single-stage or multistage heating and cooling systems, including heat pump systems
UV Lights Water Feeders Zone Control
UV lights help make your home more healthy by eliminating airborne contaminants.  Easy to insall, efficient, and very beneficial to your health makes these UV lights an easy purchase.
Water Feeders
The Electric Water Feeder (EWF) monitors the output from a Low Water Cutoff (LWCO). When the LWCO detects a low water condition, it signals the EWF, which initiates a water-feed cycle. Since the EWF is fully programmable, it can feed as long as the Low Water Cutoff detects a low water condition (LWCO Mode) or feed a pre-determined amount.
Zone Controls
Zone Controls are contractor-friendly and loaded with advanced features, so you get the complete hydronic system control you want, quickly and easily.
Zone Dampers Zone Valves
Zone Dampers
Zone Dampers are used to control circulating air in heating, cooling and ventilating systems.
Zone Valves
Use zone valves to provide individual room or area comfort control and energy savings. These valves are available in many versions and sizes to meet all your zone valve needs.
Sort By:
Page of 3
Lava Heat Italia Wall-E Electric Heater - 1500 Watts Taco FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset
Usually Ships in 3 to 5 Business Days
Our Low Price: $399.00
Usually Ships in 24 Hours
Our Low Price: $179.95
2 in stock!
Lava Heat Italia Wall-E Electric Heater - 1500 Watts Taco FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset
  • Lava Heat Italia Wall-E Electric Heater
  • Stainless steel/aluminum
  • 750–1500W heat
  • Remote control
  • Telescopic height adjustment
  • Weighted base for stability
  • Indoor or outdoor use
  • Remote switches - LED and heater
  • Safety cord, emergency shut off
  • 3-year Warranty
  • Taco FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset
  • Full outdoor boiler reset control
  • Can control system or zone valve circulator
  • Over-ride of outdoor reset when DHW tank is calling
  • Easy to install and set; will not affect boiler’s warranty
  • Front mounted LED lights for full diagnostic information
  • Ideal for retrofit applications of just about any hot water boiler
Taco SR504-EXP-4 Expandable Switching Relay - 4 Zone Taco ZVC403-4 Zone Valve Control - 3 Zone
Usually Ships in 24 Hours
Our Low Price: $179.95
3 in stock!
Usually Ships in 24 Hours
Our Low Price: $89.95
5 in stock!
Taco SR504-EXP-4 Expandable Switching Relay - 4 Zone Taco ZVC403-4 Zone Valve Control - 3 Zone
  • Taco SR504-EXP-4 Expandable Switching Relay
  • 4 Zone Expandable Relay
  • Front Diagnostic Lights
  • Switchable Priority
  • Built-in Priority Protection
  • Simplified Wiring
  • Premium Sealed Relays
  • Compact Design
  • Fuse Protected
  • Taco ZVC403-4 Zone Valve Control
  • 3 Zone Valve Control
  • Front Diagnostic Lights
  • Switchable Priority
  • Built-in Priority Protection
  • Simplified Wiring
  • Works with 2, 3, or 4-Wire Zone Valves
  • Compact Design
  • Fuse Protected
Taco ZVC404-4 Zone Valve Control - 4 Zone with Priority Taco ZVC405-4 Zone Valve Control - 5 Zone Valve Control
Usually Ships in 24 Hours
Our Low Price: $102.95
5 in stock!
Usually Ships in 24 Hours
Our Low Price: $119.95
16 in stock!
Taco ZVC404-4 Zone Valve Control - 4 Zone with Priority Taco ZVC405-4 Zone Valve Control - 5 Zone Valve Control
  • Taco ZVC404-4 Zone Valve Control
  • 4 Zone with Priority
  • Front Diagnostic Lights
  • Switchable Priority
  • Built-in Priority Protection
  • Simplified Wiring
  • Works with 2, 3, or 4-Wire Zone Valves
  • Fuse Protected
  • 24 Volt Power
  • Extended 3 Year Warranty
  • Made in the USA
  • Taco ZVC405-4 Zone Valve Control
  • 5 Zone Valve Control
  • Front Diagnostic Lights
  • Switchable Priority
  • Built-in Priority Protection
  • Simplified Wiring
  • Works with 2, 3, or 4-Wire Zone Valves
  • Universal Thermostat Compatibility
  • 24 Volt Power Output for hard wired thermostats
  • Extended 3 Year Warranty
  • Made in the USA
Taco 561-5 Zone Valve - 3/4" Sweat 3-Way By-Pass Taco 571-2 Zone Valve - 3/4" Sweat 2-Way
Usually Ships in 24 Hours
Our Low Price: $151.95
3 in stock!
Usually Ships in 24 Hours
Our Low Price: $89.95
11 in stock!
(4)
Taco 561-5 Zone Valve - 3/4" Sweat 3-Way By-Pass Taco 571-2 Zone Valve - 3/4" Sweat 2-Way
  • Taco 561-5 Zone Valve
  • 3/4” Sweat Zone Valve
  • 3-Way By-Pass
  • A 3-Way bypass version of the 570 Gold Series
  • Used to control the flow to a fan coil or terminal heating unit
  • Silent Operation
  • Twist Off Head
  • Easy to Install
  • 24 VAC Powered with Isolated End Switch
  • 100% Factory Tested
  • Made in the USA
  • 3 Year Head, 5 Year Body Warranty
  • Taco 571-2 Zone Valve
  • 3/4" Sweat Zone Valve
  • 2 Way
  • Silent Operation
  • Twist Off Head
  • Easy to Install
  • 24 VAC Powered with Isolated End Switch
  • 100% Factory Tested
  • Made in the USA
  • 3 Year Head, 5 Year Body Warranty
Taco 555-050RP Zone Valve Power Head Taco 414-1 Waste Connector
Usually Ships in 24 Hours
Our Low Price: $72.95
14 in stock!
(1)
Usually Ships in 24 Hours
Our Low Price: $5.09
19 in stock!
Taco 555-050RP Zone Valve Power Head - Series 570 Taco 414-1 Waste Connector
  • Taco 555-050RP Zone Valve Power Head
  • Zone Valve Power Head
  • For Taco Series 570 Zone Valves (570, 571, 572, & 573)
  • For Taco Series 550 Zone Valves (555, 556, & 557)
  • Taco 414-1 Waste Connector
  • 1/4" NPT
  • Screws onto the outlet connection of the Hy-Vents (models 400, 426, 418) to provide a worry-free installation
  • The 1/4” threads easily connect to a waste line, preventing water damage if the vent ever leaks
Taco 417-3 Taco-Vent Coin Vent RMJ FAR-100 - Forced Air Radiant Controller
Usually Ships in 24 Hours
Our Low Price: $6.95
3 in stock!
Usually Ships in 24 Hours
Our Low Price: $189.95
Sale Price: $85.00 Limited Quantity
3 in stock!
Taco 417-3 Taco-Vent Coin Vent RMJ FAR-100 - Forced Air Radiant Controller
  • Taco 417-3 Taco-Vent Coin Vent
  • 1/8” NPT
  • Maximum Pressure 125 PSI
  • Maximum Temp 240° F
  • Maximum Venting Pressure 125 PSI
  • Suitable for use in water and low pressure steam applications
  • Installed on water or stream radiators the Taco automatic coin vent is the ideal air purging device
 		RMJ FAR-100 - Forced Air Radiant Controller - The FAR (Forced Air Radiant) controller controls radiant and forced air systems in one simple to use five-zone controller.
Honeywell 208417M Power Supply Board Dust Free 09734 Bio-Fighter G24 UV Light System
Usually Ships in 24 Hours
Our Low Price: $329.95
Sale Price: $150.00 Limited Quantity
1 in stock!
Usually Ships in 24 Hours
Our Low Price: $89.95
2 in stock!
(1)
Honeywell 208417M Power Supply Board Dust Free 09734 Bio-Fighter G24 UV Light System
Honeywell 208417M
Replacement Power Supply
120V 60 Hz Solid State Power Supply Assembly
  • Dust Free 09734 Bio-Fighter G24 UV Light System
  • 24 volt electronic power supply
  • 14" lamp length
  • Connects to 24V power at control panel
  • 6ft lamp cord
  • Moisture-resistant lamp connector
  • 3-year power supply warranty
Fire Sense 60351 Vernon Electric Fireplace Stove - 1350 W Heater Fire Sense 60353 Stowe Electric Fireplace Stove - 1350 W Heater
Usually Ships in 1 to 2 Business Days
Our Low Price: $99.95
Usually Ships in 24 to 48 Hours
Our Low Price: $159.95
Fire Sense 60351 Vernon Electric Fireplace Stove - 1350 W Heater Fire Sense 60353 Stowe Electric Fireplace Stove
  • Fire Sense 60351 Vernon Electric Fireplace Stove - 1350 W Heater
  • Durable composite construction
  • Built in 1350 watt heater with thermostat
  • Plugs in to any household outlet
  • 3D patented flame
  • Safety cut-off
  • CSA approved
  • Fire Sense 60353 Stowe Electric Fireplace Stove - 1350 W Heater
  • MDF construction
  • Built in 1350 watt heater with thermostat
  • Plugs in to any household outlet
  • 3D patented flame
  • Safety cut-off
  • CSA approved
Fire Sense 60354 Fox Hill Electric Fireplace Stove - 1350 W Heater Fire Sense 60757 Black Wall Mounted Electric Fireplace - 1350 W Heater
Usually Ships in 24 to 48 Hours
Our Low Price: $159.95
Currently, Out of stock with no ETA
Our Low Price: $169.95
(Out of Stock)
Fire Sense 60354 Fox Hill Electric Fireplace Stove - 1350 W Heater Fire Sense 60757 Black Wall Mounted Electric Fireplace
  • Fire Sense 60354 Fox Hill Electric Fireplace Stove
  • Durable composite construction
  • Built in 1350 watt heater with thermostat
  • Plugs in to any household outlet
  • 3D patented flame
  • Safety cut-off
  • CSA approved
  • Fire Sense 60757 Black Wall Mounted Electric Fireplace
  • Full metal construction with glass front
  • Soft touch control panel
  • On/Off switch for heat and flame
  • Built in 1350 watt heater with thermostat
  • Creates 4600 BTU to heat a 200 sq. ft. area
  • 3D patented flame
  • Black finish
  • Sleek original design
  • Plugs in to any household outlet
  • Includes remote control and owners manual
  • CSA approved
Broan 678 Ventilation Ceiling and Wall Mount Fan with Light - 50 CFM SUPCO IG412 Flat Silicon Carbide Hot Surface Igniter - Replaces Robertshaw 41-412
Usually Ships in 24 Hours
Our Low Price: $42.95
2 in stock!
Usually Ships in 24 Hours
Our Low Price: $19.95
1 in stock!
Broan 678 Ventilation Ceiling and Wall Mount Fan with Light - 50 CFM SUPCO IG412 Flat Silicon Carbide Hot Surface Igniter - Replaces Robertshaw 41-412
  • Broan 678 Ventilation Ceiling and Wall Mount Fan with Light
  • 50 CFM, 2.5 Sones
  • Duct Size: 4" Round
  • Bright 100-watt lighting capacity
  • Bulb not included
  • Shatter-resistant light diffusing lens
  • Type IC (Insulation Contact)
  • Designer styled white polymeric grille complements virtually any decor
  • Plug-in, permanently lubricated motor
  • SUPCO IG412 Flat Silicon Carbide Hot Surface Igniter
  • Faster time to temperature response
  • Stronger more durable design
  • More robust in transit
  • Higher resistance to oxidation
  • Longer usable life
  • 18 gauge nickel copper high temperature fiberglass insulated lead wires
  • Replaces Robertshaw 41-412