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Dual Intermittent Pilot Gas Valve, 1/2 in. Inlet/Outlet
Our Price:$289.94This dual intermittent pilot gas valve is for HVAC professionals and maintenance teams working on compatible gas heating equipment. It supports controlled gas flow in systems that use a 24 VAC dual...
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Dual Intermittent Pilot Slow Gas Valve with LP Kit, 3/4 x 3/4 in.
Our Price:$289.94This dual intermittent pilot gas valve is for HVAC service professionals working on compatible heating equipment. It provides a gas-valve replacement option with spark operation and an included LP...
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Dual Intermittent Pilot Slow-Opening Gas Valve, 3/4 in. x 3/4 in.
Our Price:$365.94This dual intermittent pilot gas valve is for HVAC professionals who need to control gas flow in compatible heating equipment. Its slow-opening operation supports controlled valve operation during...
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Dual Intermittent Pilot Step-Open Natural Gas Valve, 3/4 in. x 3/4 in.
Our Price:$385.94This dual intermittent-pilot gas valve is for HVAC service professionals maintaining natural gas heating equipment. It provides controlled gas-flow operation with a step-open design for compatible...
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Dual Run Capacitor, 70 + 5 MFD, 440V, Round
Our Price:$16.74This round dual run capacitor is for HVAC service professionals maintaining motor-driven equipment. Its 70 + 5 MFD rating provides the electrical capacitance needed to support motor operation in...
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Dual Standing Pilot Combination Gas Control with LP Kit
Our Price:$219.94This dual standing pilot gas control is for technicians and maintenance professionals servicing 24 VAC gas-fired standing pilot appliances. It combines manual gas control, safety shutoff, automatic...
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Dual Standing Pilot Gas Valve, 1/2 in. Inlet/Outlet
Our Price:$229.94This dual standing pilot gas valve is for HVAC professionals servicing 24 VAC heating equipment with a dual standing pilot system. It provides gas-flow control with 1/2 in. inlet and outlet...
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Dual Two-Stage Intermittent Pilot Gas Valve
Our Price:$445.94This dual two-stage intermittent pilot gas valve is for HVAC technicians and maintenance professionals who need to control gas flow in compatible heating equipment. It provides intermittent-pilot...
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Dual Valve Direct Ignition Gas Control
Our Price:$299.94This dual valve direct ignition gas control is a gas valve component for commercial buyers sourcing heating equipment parts. It provides gas control for direct-ignition applications.The unit has a...
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Dual-Diameter Nylon Tube Cleaning Brush for 15/16 in. ID Tubes, 25-Pack
Our Price:$235.94This dual-diameter nylon brush is designed for HVAC service professionals cleaning straight, internally enhanced tubes with a 15/16 in. inside diameter. It helps remove soft deposits, including mud...
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Dual-Diameter Nylon Tube Cleaning Brush, 5/8 in. ID, Quick Connect, Pack of 25
Our Price:$235.94This dual-diameter nylon brush is used by HVAC service professionals to remove soft deposits, such as mud and algae, from straight internally enhanced tubes. Its two-ended design helps clean the...
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Dual-Diameter Nylon Tube Cleaning Brush, Quick Connect, 15/16 in. ID, Pack of 25
Our Price:$235.94This dual-diameter nylon brush is for maintenance professionals cleaning soft deposits from straight, internally enhanced ferrous and nonferrous tubes. It helps remove mud, algae, and similar buildup...
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Dual-Diameter Nylon Tube Cleaning Brushes for 5/8 in. ID Tubes, 25-Pack
Our Price:$235.94These dual-diameter nylon brushes help maintenance teams clean soft deposits from straight, internally enhanced tubes with a 5/8 in. inside diameter. Their two-ended design is made to reach both the...
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Dual-Grille Bathroom Exhaust Fan with LED Lights, 270 CFM
Our Price:$409.94This dual-grille bathroom exhaust fan is designed for commercial buyers who need ventilation and lighting at two ceiling locations. It uses one remotely mounted fan to help ventilate separate areas...
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Dual-Grille Bathroom Exhaust Fan, 270 CFM, 120V
Our Price:$325.94This dual-grille bathroom exhaust fan is designed for commercial buyers who need source ventilation across multiple areas of a bathroom or in two separate bathrooms. Its remote-mounted fan supports...
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Dual-Voltage Whole-House UV Air Purifier
Our Price:$189.94This whole-house UV air purifier is for homeowners who want to treat air as it moves through a home heating and air conditioning system. Installed in the main supply or return duct, it uses...
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Duct Storage Bag for 12 in. or 16 in. Ducting
Our Price:$99.94This duct storage bag is for crews and other users who need to carry and keep 12 in. or 16 in. ducting together between uses. It provides a dedicated storage option with convenient access for...
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Economy High-Side R-134a Service Coupler
Our Price:$58.94This economy high-side service coupler is for HVAC service professionals working with R-134a systems. It provides a straightforward connection for service access and allows flow as soon as it is...
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Economy Low-Side R-134A Service Coupler
Our Price:$57.94This economy low-side service coupler is for HVAC service personnel working with R-134A systems. It snaps onto the connection to provide immediate flow during service.The coupler is designed for...
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Electronic Furnace Fan Timer Control
Our Price:$199.94This electronic fan timer control is for HVAC technicians and facility maintenance teams servicing oil heating systems. It provides a central wiring point for furnace electrical components while...
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