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Round Motor Start Capacitor, 1290–1548 MFD, 110/125V
Our Price:$34.94This round motor start capacitor is for technicians and maintenance professionals working with AC motor starting circuits. It provides the starting capacitance needed for intermittent-duty motor...
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Round Motor Start Capacitor, 130-156 MFD, 110/125V
Our Price:$10.49This round motor start capacitor is designed for HVAC service professionals and other technicians working on AC motor starting circuits. It provides intermittent-duty starting support for compatible...
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Round Motor Start Capacitor, 233–280 MFD, 220/250V
Our Price:$28.94This round motor start capacitor is for HVAC technicians and maintenance professionals servicing AC motor starting circuits. It provides the starting capacitance needed for intermittent motor-start...
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Round Motor Start Capacitor, 400-480 MFD, 110/125V
Our Price:$16.24This round motor start capacitor is for HVAC technicians and maintenance professionals servicing AC motor starting circuits. It provides the starting capacitance needed for intermittent motor-start...
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Round Motor Start Capacitor, 430–515 MFD, 110/125V
Our Price:$16.99This round motor start capacitor is for technicians and maintenance professionals servicing AC motor starting circuits. It provides the starting capacitance needed for intermittent-duty motor starts...
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Round Motor Start Capacitor, 53-64 MFD, 220/250V
Our Price:$20.74This round motor start capacitor is for technicians and maintenance professionals servicing AC motor starting circuits. It provides the starting capacitance needed for intermittent motor-start...
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Round Motor Start Capacitor, 590-708 MFD, 110/125V
Our Price:$19.99This round motor start capacitor is for technicians and maintenance professionals servicing AC motor starting circuits. It provides intermittent-duty starting support for compatible motors.This dry...
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Round Motor Start Capacitor, 708–850 MFD, 110/125V
Our Price:$25.94This round motor start capacitor is for technicians and maintenance professionals servicing AC motor starting circuits. It provides the starting support needed for intermittent-duty motor operation...
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Round Motor-Run Capacitor, 40 + 7.5 MFD, 440V
Our Price:$11.99This round motor-run capacitor is for HVAC technicians and maintenance professionals who need a 40 + 7.5 MFD, 440V replacement component. It supports motor operation in compatible HVAC equipment.The...
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Round Start Capacitor, 108-130 MFD, 330V
Our Price:$31.94This round start capacitor is for HVAC service professionals and maintenance teams who need a replacement capacitor to support equipment starting operation. It provides a 108-130 MFD rating at 330V...
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Round Start Capacitor, 130-158 MFD, 220/250V
Our Price:$24.74This round start capacitor is an HVAC replacement component for technicians and maintenance professionals working with compatible equipment. It provides start-capacitor capacity to support equipment...
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Round Start Capacitor, 324-388 MFD, 110/125V
Our Price:$14.74This round start capacitor is for HVAC service professionals and maintenance teams working with compatible equipment. It provides the specified starting-capacitor component for 110/125V systems...
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Round Start Capacitor, 64–77 MFD, 250/250V
Our Price:$23.24This round start capacitor is an HVAC replacement component for technicians and maintenance professionals working on compatible equipment. It provides start-capacitor support with a 64–77 MFD rating...
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Round Start Capacitor, 72-88 MFD, 220/250V
Our Price:$18.49This round start capacitor is for HVAC service professionals replacing compatible capacitor components. It provides 72-88 MFD capacity at 220/250V to support equipment startup needs.The capacitor has...
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Safety Pilot Manual Valve and LP Conversion Kit
Our Price:$129.94This safety pilot manual valve and LP conversion kit is for users of compatible vented gas log sets and glass burners. It supports liquid propane gas setups and provides a standing pilot with...
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Sail Switch with 5-Inch-Wide Sail
Our Price:$109.94This sail switch is an HVAC control component for service and maintenance professionals who need a switch with a 5-inch-wide sail. It supports airflow-responsive control work in HVAC systems.The...
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Scented Water Treatment Tablets for Evaporative Coolers, Pack of 6
Our Price:$29.94These scented water treatment tablets are for evaporative cooler users who want to help control unpleasant odors in cooler water. The dissolvable tablets are formulated to reduce foul and swampy...
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Screw Plug Immersion Heater Replacement, 500W, 120V
Our Price:$415.94This screw plug immersion heater replacement is a 500W, 120V heating component for maintenance professionals replacing an existing immersion heater. Its practical purpose is to provide electric...
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SD Component Strip Heater, 120V, 100W, 7-1/4 in. Length
Our Price:$59.94This 120V component strip heater is for industrial users who need a compact heat source for surface or process-air heating. Its 100W output supports heating tasks in equipment and installations where...
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Sealed Flange Ball Bearing for 1 in. Shafts
Our Price:$319.94This sealed flange ball bearing is designed for HVAC professionals and maintenance teams working with equipment that uses a 1 in. shaft. It provides a bearing option for supporting shaft operation in...
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