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High-Limit Circulator Aquastat Controller
Our Price:$375.94This high-limit circulator aquastat controller is for HVAC professionals who need to manage a circulator and high-limit temperature control in an HVAC system. It provides a dedicated controller for...
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High-Limit Manual-Reset Aquastat Controller
Our Price:$299.94This high-limit manual-reset aquastat controller is for HVAC technicians and maintenance teams who need to monitor operating temperature in aquastat applications. Its high-limit control function...
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High-Limit Manual-Reset Aquastat Controller, 100 to 240°F
Our Price:$355.94This high-limit manual-reset aquastat controller is for HVAC professionals and facility maintenance teams who need to monitor operating temperature in aquastat applications. It provides a...
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High-Limit Manual-Reset Aquastat Controller, 130°F to 270°F
Our Price:$279.94This high-limit manual-reset aquastat controller is for HVAC technicians and facility maintenance teams who need to monitor temperature in applicable heating-control systems. It provides a high-limit...
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High-Limit Oil Aquastat Relay, 120V
Our Price:$339.94This high-limit oil aquastat relay is a temperature control for HVAC technicians and maintenance professionals working with oil heating equipment. It helps manage system temperature within its...
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High-Pressure SPST Pressure Switch, 300 PSI Open / 200 PSI Close
Our Price:$25.94This high-pressure SPST pressure switch is for HVAC service professionals who need to control condenser fan cycling based on system pressure. It opens on a pressure rise at 300 PSI and closes at 200...
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High-Pressure SPST Pressure Switch, 400 PSI Open / 300 PSI Close
Our Price:$28.94This high-pressure SPST pressure switch is for HVAC technicians and service professionals who need to control condenser fan cycling based on system pressure. It opens on a pressure rise at 400 PSI...
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High-Pressure SPST Pressure Switch, 600 PSI Open / 475 PSI Close
Our Price:$18.99This high-pressure SPST pressure switch is for HVAC technicians and service professionals who need to control condenser fan cycling based on system pressure. It opens on a pressure rise at 600 PSI...
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High-Pressure SPST Switch, 350 PSI Open / 250 PSI Close
Our Price:$19.74This high-pressure SPST switch is for HVAC professionals who need to cycle condenser fans in response to system pressure. It opens on a pressure rise at 350 PSI and closes at 250 PSI to support...
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High-Pressure SPST Switch, 400 PSI Open / 200 PSI Close
Our Price:$21.49This high-pressure SPST switch is for HVAC technicians and service professionals who need to cycle condenser fans in response to system pressure. It opens on a pressure rise at 400 PSI and closes at...
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High-Pressure SPST Switch, 400 PSI Open / 280 PSI Close
Our Price:$30.94This high-pressure SPST switch is for HVAC technicians and service professionals who need to monitor pressure and cycle condenser fans. It opens on a pressure rise at 400 PSI and closes at 280 PSI...
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High-Pressure SPST Switch, 425 PSI Open / 325 PSI Close
Our Price:$31.94This high-pressure SPST switch is for HVAC technicians and service professionals who need to cycle a condenser fan based on system pressure. It opens on a pressure rise at 425 PSI and closes at 325...
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High-Pressure SPST Switch, 450 PSI Open / 250 PSI Close
Our Price:$17.99This high-pressure SPST pressure switch is for HVAC service professionals and technicians working with condenser fan cycling controls. It opens on a pressure rise at 450 PSI and closes at 250 PSI to...
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High-Pressure SPST Switch, 610 PSI Open / 420 PSI Close
Our Price:$31.94This high-pressure SPST switch is for HVAC professionals and service teams who need to control condenser fan cycling based on system pressure. It opens on a pressure rise at 610 PSI and closes at 420...
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High-Temperature Curing Blanket, 18 in. x 18 in., 120V
Our Price:$449.94This fixed-temperature curing blanket provides professionals with consistent heat for epoxy curing, material preheating, ground thawing, and composite material production. Its 18 in. x 18 in...
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High-Temperature Fixed-Heat Curing Blanket, 24 in. x 24 in., 120V
Our Price:$485.94This fixed-temperature curing blanket provides consistent heat for professionals performing epoxy curing, material preheating, ground thawing, snow and ice removal, and composite-material production...
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High/Low Limit Aquastat Controller
Our Price:$279.94This high/low limit aquastat controller is for HVAC professionals and facility maintenance teams who need to manage temperature limits in HVAC control applications. It provides adjustable temperature...
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High/Low Limit Aquastat Controller, 100°F to 240°F
Our Price:$259.94This aquastat controller is for HVAC technicians and facility maintenance teams that need to manage high- or low-limit temperature control. It provides a practical temperature-control component for...
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High/Low Limit Aquastat Controller, 130°F to 270°F
Our Price:$405.94This high/low limit aquastat controller is for HVAC professionals and maintenance teams who need to monitor and control temperature limits in compatible equipment. It supports temperature-based...
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Horizontal Circulator Coupling, 1/2 in. x 3/8 in. Dia. x 2 in. L
Our Price:$34.94This coupling is a circulator pump accessory for HVAC service teams working with compatible horizontal circulators. It provides the specified coupling component needed when servicing the circulator...
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