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3-Inch Stainless Steel Clamp-Together Duct Clamp
Our Price:$28.94This 3-inch stainless steel duct clamp is for ductwork installers connecting clamp-fitting duct components. It secures and seals the rolled lip at component ends to create a joined duct connection...
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3-Speed 220V Circulator Water Pump
Our Price:$345.94This 220V circulator water pump is designed for residential hot-water and heating-system users who need to move water through compatible loop systems. Its three-speed operation helps users select the...
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3-Speed Cast Iron Circulator Water Pump, 115V - 5-1/4 in W x 4-3/16 in H x 21 D
Our Price:$239.94This 3-speed circulator water pump is for HVAC professionals who need to circulate water in compatible systems. Its selectable speed settings help users match pump operation to the needs of the...
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3-Terminal Compressor Repair Lugs with 10 AWG 4-Foot Spade Leads
Our Price:$57.94These 3-terminal repair lugs help HVAC technicians restore connections at damaged or corroded compressor spade terminals. They provide a practical replacement connection for standard compressor...
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3-Terminal Compressor Repair Lugs with 10 AWG Leads and Nut
Our Price:$55.94These 3-terminal repair lugs help HVAC service professionals restore connections at damaged or corroded compressor spade terminals. They provide a practical way to connect existing wiring to standard...
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3-Terminal Compressor Repair Lugs with 12 AWG Leads
Our Price:$56.94These 3-terminal repair lugs are for HVAC service professionals repairing damaged or corroded spade connections on compressors. They provide a replacement connection point for standard compressor...
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3-Way Adjustable Aluminum Ceiling Diffuser for 6 x 6 Inch Duct Openings, White
Our Price:$22.74This white ceiling diffuser is designed for indoor air-supply applications where users need to direct airflow from a 6 x 6 inch duct opening. Its adjustable three-way blade design helps facility and...
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3-Way Adjustable Aluminum Ceiling Diffuser, White, for 14 x 14 in. Duct Opening
Our Price:$57.94This white ceiling diffuser is for facilities professionals and commercial buyers who need to direct supply air from a 14 x 14 in. duct opening. Its adjustable three-way blade design helps distribute...
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3-Way Adjustable Aluminum Ceiling Diffuser, White, for 14 x 6 in. Duct Openings
Our Price:$33.94This white ceiling diffuser is designed for indoor air-supply applications in ceilings. Facility teams and contractors can use it to direct airflow from a 14 x 6 in. duct opening across three...
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3-Way Aluminum Ceiling Diffuser for 10 x 6 Inch Duct Openings
Our Price:$22.74This white ceiling diffuser is for facilities professionals and contractors who need to distribute supply air from a 10 x 6 inch duct opening. Its adjustable three-way design directs airflow across...
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3-Way Aluminum Ceiling Diffuser for 12 x 12 Duct Openings, White
Our Price:$45.94This 3-way ceiling diffuser is used by facility and HVAC buyers to direct supply air from a 12 x 12 duct opening into indoor spaces. Its adjustable curved blades help distribute airflow from...
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3-Way Aluminum Ceiling Diffuser for 12 x 6 in. Duct Opening, White
Our Price:$27.94This white ceiling diffuser is designed for facilities teams and HVAC installers who need to direct supply air from a 12 x 6 in. duct opening. Its adjustable three-way blade design helps distribute...
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3-Way Aluminum Ceiling Diffuser for 12 x 8 Inch Duct Openings, White
Our Price:$39.94This 3-way ceiling diffuser is designed for facilities professionals and contractors who need to supply and direct airflow through a 12 x 8 inch duct opening. It mounts in indoor ceiling...
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3-Way Aluminum Ceiling Diffuser for 8 x 8 Inch Duct Openings, White
Our Price:$27.94This white ceiling diffuser is designed for facilities teams and HVAC installers who need to direct supply air from an 8 x 8 inch duct opening. Its adjustable curved blades help distribute airflow in...
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3-Way Aluminum Ceiling Diffuser, White, for 10 x 10 in. Duct Opening
Our Price:$34.94This white ceiling diffuser is for commercial buyers who need to distribute supply air from a 10 x 10 in. duct opening. Its adjustable three-way blade design directs airflow across indoor ceiling...
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3-Way Refrigerant Manifold Gauge Set with 60-Inch Hoses
Our Price:$299.94This 3-way refrigerant manifold gauge set is for HVAC service professionals who need to check refrigerant visually and monitor system readings. It combines gauges, color-coded hoses, valves, and a...
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3-Way Steel Ceiling/Sidewall Register, 15-3/4 in. x 7-3/4 in., White, Pack of 10
Our Price:$29.94This 3-way steel register is designed for commercial HVAC installations in ceilings or sidewalls. It helps building maintenance teams direct heated or cooled air into occupied spaces while providing...
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3-Wing Belt Drive Bearing Bracket Assembly with 3/4-Inch Shaft
Our Price:$149.94This 3-wing belt drive bearing bracket assembly is for HVAC service and maintenance teams working with 9 to 16 inch blowers. It provides a bearing-supported shaft and mounting parts for belt-drive...
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3-Wing Belt Drive Bearing Bracket for 12-Inch Blowers
Our Price:$52.94This 3-wing belt drive bearing bracket is a motor mounting part for HVAC technicians and maintenance teams working with 12-inch blowers. It provides a dedicated bracket component for blower...
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3-Wing Belt Drive Bearing Bracket for 18-Inch Blowers
Our Price:$94.94This 3-wing belt drive bearing bracket is a motor mounting part for HVAC professionals and maintenance teams working with 18-inch blowers. It supports belt-drive blower assembly and replacement needs...
Climate Control & Air Quality: Find the Right Equipment for Your Space
Whether you're cooling a server room, filtering allergens from a workspace, heating a warehouse, or improving ventilation in a commercial building, this category covers the full range of climate control and air quality equipment. Use the subcategories below to find the right starting point for your project.
Choose your starting point
Popular examples in this category
What Climate Control & Air Quality Equipment Does
These products manage temperature, airflow, and air purity in residential, commercial, and industrial settings. Applications range from cooling server rooms and heating warehouses to filtering contaminants from manufacturing floors and controlling humidity in storage facilities.
How to Choose the Right Equipment
Start by identifying your primary need: temperature regulation, air movement, or air quality. Then consider your space size, existing infrastructure, power availability, and whether you need portable or permanently installed equipment. Matching capacity to square footage and load is critical for efficiency.
Where This Equipment Is Commonly Used
Common applications include office HVAC systems, industrial exhaust ventilation, cleanroom filtration, data center cooling, retail space heating, and residential air purification. Each environment has distinct requirements for capacity, filtration grade, noise level, and installation type.
Installation, Maintenance & Replacement Considerations
Many systems require periodic filter changes, belt inspections, or refrigerant checks. Stocking replacement parts and controls in advance reduces downtime. Always verify voltage compatibility and local code requirements before purchasing heating or cooling equipment for permanent installation.
Which Subcategory Fits Your Need?
Use this table to match your primary requirement to the right starting point.
| Need | Best Fit Subcategory | Why It Matters |
|---|---|---|
| Cool a room, building, or equipment enclosure | Air Conditioning & Cooling | Provides temperature reduction through refrigerant-based or evaporative systems sized by BTU or tonnage. |
| Remove dust, allergens, fumes, or humidity from the air | Air Quality & Filtration | Addresses airborne contaminants with filters, purifiers, and dehumidifiers rated for specific particle sizes and pollutant types. |
| Move air through a space or exhaust heat and fumes | Fans, Blowers & Ventilation | Improves airflow and air exchange without full HVAC infrastructure; suitable for spot cooling, exhaust, and circulation. |
| Warm a space during cold seasons or in cold climates | Heating Equipment | Covers unit heaters, radiant heaters, and other solutions sized by BTU output and fuel or power source. |
| Automate, monitor, or control an existing HVAC system | HVAC Controls | Thermostats, sensors, and controllers that improve efficiency and allow scheduling or remote management. |
| Maintain or repair existing climate control equipment | Parts & Service | Replacement components, filters, belts, and service items that extend equipment life and reduce downtime. |
Plan the right fit before choosing
Step 1: Define Your Climate Control Goal
Before selecting equipment, clearly identify whether your priority is temperature control, air movement, or air quality improvement. A space may need all three, but starting with the primary problem helps you size and budget correctly.
- Cooling or heating: Determine the BTU or tonnage needed based on square footage, insulation, and heat load.
- Ventilation: Calculate air changes per hour (ACH) required for the space type and occupancy level.
- Air quality: Identify contaminants (dust, fumes, allergens, moisture) to select the correct filtration or purification method.
Step 2: Assess Your Space and Infrastructure
Equipment performance depends heavily on the environment it operates in. Measure your space and evaluate existing infrastructure before purchasing.
- Room dimensions and ceiling height affect required equipment capacity.
- Check available power supply: voltage, phase, and amperage must match equipment specs.
- Determine whether ductwork, drainage, or mounting structures are already in place or need to be added.
Step 3: Plan for Ongoing Service and Parts
Climate control equipment requires regular maintenance to perform efficiently and last longer. Build a service plan into your purchasing decision.
- Identify filter replacement intervals and stock spare filters appropriate for your system.
- Review available HVAC controls and thermostats to automate scheduling and reduce energy use.
- Keep critical replacement parts on hand to minimize downtime during peak heating or cooling seasons.
This category is divided into six focused subcategories so you can navigate directly to the equipment type you need.
Cooling and heating capacity is measured in BTUs or tons; matching these figures to your space size is the most important selection step.
Air filters are rated on the MERV scale; higher ratings capture smaller particles but may restrict airflow in systems not designed for them.
Ventilation systems are sized by how many times per hour they replace the air in a space, a figure that varies by application and occupancy.
Common questions before buying
How do I know what size air conditioner or heater I need?
Capacity is primarily determined by the square footage of the space, ceiling height, insulation quality, and heat-generating equipment inside. A general rule is 20 BTUs per square foot for cooling, but industrial or high-heat environments require more detailed load calculations.
What is the difference between an air purifier and an air filter?
Air filters physically trap particles as air passes through them and are typically installed in HVAC systems or standalone units. Air purifiers may use additional technologies such as UV light or ionization to neutralize contaminants. The right choice depends on the type of pollutant you need to address.
Can I use a portable fan instead of a ventilation system?
Portable fans improve air circulation and can provide spot cooling, but they do not replace air or remove contaminants the way a ventilation system does. For spaces requiring code-compliant exhaust or a specific number of air changes per hour, a dedicated ventilation solution is necessary.
How often should HVAC filters be replaced?
Replacement frequency depends on the filter type, MERV rating, and how much particulate the system encounters. Standard filters in light-use environments may last 1 to 3 months, while high-efficiency filters in dusty or high-traffic spaces may need more frequent changes. Always follow the equipment manufacturer's guidelines.
Fans, Blowers & Ventilation
HVAC Controls, Parts & Service