Views: 0 Author: jessi Publish Time: 2026-09-27 Origin: Site
Cooling tower fill is one of the most important components inside a wet cooling tower. It creates a large contact area between circulating water and air, helping improve heat and mass transfer and allowing the tower to remove heat more effectively.
However, choosing the right cooling tower fill manufacturer is not simply about comparing prices. Fill geometry, material, water quality, operating temperature, airflow resistance, fouling resistance, replacement requirements, and tower configuration can all affect the final result.
With manufacturers offering PVC film fill, PP fill, splash fill, hybrid fill, crossflow fill, counterflow fill, and customized replacement media, buyers have many options to evaluate.
This guide introduces 10 representative cooling tower fill manufacturers and suppliers around the world, covering their main strengths, product technologies, applications, and selection considerations.
Cooling tower fill, also called cooling tower filler, cooling tower packing, fill media, or heat-transfer media, is installed inside evaporative cooling towers.
Its primary function is to increase the interaction between water and air.
Hot circulating water enters the cooling tower and is distributed over the fill. Depending on the fill design, water flows as thin films over sheets or breaks into droplets through splash media.
At the same time, air moves through the fill section.
This creates a large surface area for heat and mass transfer. A portion of the water evaporates, removing heat from the remaining circulating water.
The fill does not operate independently. Its performance depends on several other tower components, including:
Water distribution systems
Spray nozzles
Fans
Drift eliminators
Air inlet louvers
Cooling tower basin
Water treatment systems
Tower structure
A well-designed fill can provide effective heat transfer without creating excessive airflow resistance.
The following companies represent a range of global cooling tower manufacturers, specialized fill suppliers, and replacement-media producers.
Power Tower Cooling Technology is a China-based cooling tower component manufacturer focusing on cooling tower fill, PVC fill, PP fill, replacement fill, drift eliminators, nozzles, louvers, fan blades, motors, reducers, and other tower components.
The company is particularly relevant for buyers looking for customized cooling tower components and replacement solutions.
Its product approach covers both individual components and replacement projects.
Typical applications include:
Industrial cooling towers
HVAC cooling towers
Crossflow towers
Counterflow towers
PVC fill replacement
PP fill applications
Customized cooling tower components
For a replacement project, buyers should provide:
Existing fill dimensions
Sheet thickness
Fill height and width
Flute design
Tower model
Water temperature
Water flow
Operating environment
This information helps determine whether a replacement fill can match the existing tower.
Brentwood Industries is an established supplier of engineered cooling tower components and fill media. Its cooling tower portfolio includes film fills, trickle fills, splash fills, drift eliminators, louvers, nozzles, and related components.
Brentwood's film-fill portfolio includes several geometries designed for different operating conditions.
These include:
Cross-fluted film fill
Herringbone fill
Offset-fluted fill
Vertical-fluted fill
Hybrid-fluted fill
The company also supplies splash and trickle fill options.
Cooling towers operating with poor water quality can experience scaling, biological growth, suspended solids, and debris accumulation.
Brentwood specifically develops fill geometries that balance thermal performance and fouling resistance, giving engineers more options for different water-quality conditions.
SPX Cooling Tech is one of the major global cooling technology manufacturers, with well-known brands including Marley, Recold, and SGS. Its products serve HVAC, industrial, process cooling, refrigeration, and other applications.
Marley has a long history in cooling tower technology and offers cooling tower components and heat-transfer fill media.
Its fill portfolio includes different film and splash-fill technologies designed for new towers and replacement applications.
Marley fill can be considered for:
Crossflow cooling towers
Counterflow cooling towers
Industrial process cooling
HVAC cooling
Replacement projects
Retrofit applications
SPX Cooling Tech states that it operates with a broad global network of offices, subsidiaries, and partners.
When replacing existing Marley fill, do not select a product based only on the tower brand.
The actual fill dimensions, configuration, water loading, air movement, support system, and operating conditions should also be verified.
Baltimore Aircoil Company, commonly known as BAC, is a major manufacturer of evaporative cooling and heat-rejection equipment.
BAC describes itself as a global provider of comfort cooling, process cooling, and refrigeration solutions.
Yes. BAC provides factory-authorized parts and replacement fill kits for existing equipment. Its parts portfolio includes heat-transfer components and replacement fill solutions.
The geometry of cooling tower fill can significantly influence thermal performance.
BAC has published a replacement-fill case study showing that an alternative fill configuration produced a substantial reduction in thermal performance compared with the original hanging fill, while replacing it with BAC OEM fill restored most of the original performance.
This illustrates an important purchasing principle:
Cooling tower fill should be selected according to tower design and thermal requirements rather than price alone.
EVAPCO is a global manufacturer of evaporative cooling equipment and related components.
Its cooling tower technologies include engineered heat-transfer media designed for different water conditions and operating requirements.
EVAPCO's product literature describes EVAPAK fill as a fill designed to promote turbulent air-water mixing for heat transfer.
The company also provides technical information comparing different cooling tower heat-transfer media.
EVAPCO notes that heat-transfer media may need replacement once or twice during the life of a cooling tower, with longevity strongly influenced by water quality, air quality, and proper operation.
Therefore, there is no universal replacement interval for every cooling tower.
Paharpur Cooling Towers is an Indian cooling tower manufacturer serving industries including power, chemicals, HVACR, metals, cement, pharmaceuticals, food and beverage, and oil and gas. The company states that it has supplied more than 82,000 cooling towers and heat exchangers worldwide.
Paharpur's cooling tower products include high-efficiency film-fill systems.
For example, its Series RXF uses film-type fill and an optimized water distribution system. Paharpur states that its fill sheets are designed to provide high heat transfer while controlling airflow resistance.
Industrial cooling towers may operate with higher temperatures, heavier contamination, and more demanding water conditions than conventional HVAC systems.
Therefore, fill selection should consider:
Water temperature
Suspended solids
Scaling potential
Biological fouling
Airflow resistance
Heat-transfer requirements
Cleaning requirements
KUKEN Industries is a Japanese manufacturer of cooling towers and related air-conditioning equipment.
The company has developed cooling tower technologies for both air-conditioning and industrial applications.
KUKEN highlights the role of newly developed filling and fan units in achieving compact tower designs, energy savings, and reduced drift loss.
Its cooling tower products include open and closed cooling tower systems for different operating environments.
Applications can include:
Commercial HVAC
Industrial facilities
Manufacturing plants
Process cooling
Large cooling systems
For customers purchasing replacement fill, it is important to match the replacement media with the original tower configuration.
Filling Technologies is an Italian company specializing in plastic processing and products for evaporative cooling towers and air and water treatment.
The company has been active since 1975 and produces structured fill media, drift eliminators, and air inlet louvers for evaporative cooling applications.
Its plastic-processing capabilities include materials such as:
PVC
PVC + ABS
PP
PS
European suppliers can be particularly relevant for projects requiring:
Structured fill media
Evaporative cooling components
Custom plastic processing
Drift eliminators
Air-treatment components
Water-treatment applications
This makes Filling Technologies a notable specialist to consider when sourcing European cooling tower internals.
Delta Cooling Towers is another company associated with cooling tower systems and components, particularly for commercial and industrial cooling applications.
When replacing fill in an existing cooling tower, the critical factors include:
Measure the existing fill height, width, thickness, and block configuration.
PVC and PP have different temperature and chemical-resistance characteristics.
The flute pattern affects water distribution, air passage, heat-transfer surface, and pressure drop.
Hanging sheets, glued blocks, modular fill, and splash bars require different support arrangements.
Hamon is an international engineering group associated with cooling systems and industrial environmental technologies.
Its cooling tower activities cover engineered cooling solutions for demanding industrial applications.
Large industrial cooling tower projects often require more than a standard fill sheet.
The project may involve:
Thermal design
Tower refurbishment
Fill replacement
Water distribution
Airflow optimization
Drift control
Structural modifications
Site engineering
For these applications, the supplier's engineering capability can be just as important as the fill material itself.
Different manufacturers use different fill geometries and materials because cooling tower operating conditions vary significantly.
Film fill spreads water into thin films over a large surface area.
Film fill is commonly selected for applications requiring:
High heat-transfer efficiency
Large surface area
Compact fill volume
Efficient water-air contact
Common designs include:
Cross-fluted fill
Offset-fluted fill
Vertical-fluted fill
Herringbone fill
Hybrid fill
Highly efficient film fill can be more sensitive to fouling when circulating water contains significant quantities of suspended solids or debris.
Splash fill breaks water into droplets as it falls through the tower.
Splash fill can be considered for applications where water quality makes conventional film fill difficult to maintain.
It is often associated with:
Industrial cooling
High suspended solids
Dirty process water
Heavy dust environments
Fouling-prone applications
Brentwood, for example, describes splash-fill products for situations where poor water quality may not permit the use of film fill.
PVC is one of the most widely used materials for cooling tower film fill.
PP can be considered when higher temperature resistance or particular chemical compatibility is required.
PVC cooling tower fill can offer:
Good thermal performance
Low material cost
Easy thermoforming
Good chemical resistance
Lightweight construction
Wide availability
PP can be attractive for applications involving:
Higher operating temperatures
Specific chemical environments
Specialized industrial cooling
However, the actual suitability should always be confirmed against the manufacturer's technical specifications.
Selecting a manufacturer should start with the cooling tower rather than the supplier name.
Determine whether the tower is:
Crossflow
Counterflow
Open circuit
Closed circuit
Induced draft
Forced draft
Mechanical draft
Natural draft
Different tower configurations require different fill arrangements.
Water quality is one of the most important factors in fill selection.
Consider:
TSS
Hardness
Silica
Oil contamination
Biological growth
Corrosion products
Dirt and debris
A high-efficiency fill is not necessarily the right choice if the operating water rapidly causes fouling.
Look beyond the basic fill dimensions.
Ask the manufacturer for relevant performance information, such as:
Water loading
Airflow
Pressure drop
Heat-transfer performance
Fill volume
Operating temperature
For an existing tower, verify:
Fill dimensions
Support configuration
Hangers
Clips
Fill orientation
Block dimensions
Water distribution
Drift eliminator position
A small dimensional difference can make installation difficult.
The cheapest fill is not always the lowest-cost solution over the entire operating life.
Consider:
Purchase Cost + Installation Cost + Maintenance Cost + Energy Impact + Replacement Frequency
This provides a more useful comparison than unit price alone.
Cooling tower fill does not have one universal service life.
The replacement timing depends on operating conditions.
Look for:
Broken fill sheets
Collapsed fill packs
Severe scaling
Biological growth
Mud accumulation
Blocked air passages
Deformation
Excessive brittleness
Reduced cooling performance
Yes.
When fill passages become blocked, water and air cannot interact as designed.
This can result in:
Reduced heat transfer
Higher approach temperature
Increased fan energy
Uneven water distribution
Increased maintenance requirements
Replacement cost is not determined by the fill price alone.
Before requesting a quotation, collect as much information as possible.
A useful RFQ should include:
Tower manufacturer
Tower model
Fill type
Fill dimensions
Fill material
Sheet thickness
Quantity
Water flow
Water temperature
Cooling range
Application
Photos of existing fill
Photos can help suppliers identify:
Fill geometry
Installation method
Support structure
Damage patterns
Water distribution arrangements
This can reduce the risk of ordering incompatible replacement media.
The cooling tower fill industry is moving beyond the simple goal of maximizing surface area.
Modern fill designs increasingly attempt to balance heat-transfer performance with airflow resistance.
This matters because fan energy can represent a significant part of cooling tower operating costs.
Industrial customers increasingly need fill that can maintain performance under less-than-ideal water conditions.
Vertical-fluted, offset-fluted, hybrid, and splash-fill designs are examples of approaches manufacturers use to address different fouling risks.
Older cooling towers may no longer have readily available original components.
As a result, customized replacement fill is becoming increasingly important.
Suppliers may need to reproduce:
Dimensions
Flute geometry
Sheet thickness
Hanging configuration
Block arrangement
Support system
Cooling tower fill affects water-air contact, heat transfer, airflow, and evaporation.
Better fill selection can therefore contribute to a broader cooling-system efficiency strategy.
| Manufacturer | Region | Main Strength | Typical Fill/Application Focus |
|---|---|---|---|
| Power Tower Cooling Technology | China | Customization and replacement | PVC, PP, replacement fill |
| Brentwood Industries | USA | Engineered fill technology | Film, trickle, splash |
| SPX Cooling Tech / Marley | USA | OEM and aftermarket cooling technology | Film and splash fill |
| BAC | USA | Integrated cooling solutions | OEM and replacement fill |
| EVAPCO | USA | Evaporative cooling technology | Heat-transfer media |
| Paharpur Cooling Towers | India | Industrial cooling systems | Film fill and tower systems |
| KUKEN Industries | Japan | HVAC and industrial towers | Integrated tower/fill systems |
| Filling Technologies | Italy | Structured plastic media | PVC/PP structured fill |
| Delta Cooling Towers | USA | Cooling tower systems | Tower components and fill applications |
| Hamon Group | Europe | Industrial engineering | Industrial cooling solutions |
This table should be used as a starting point rather than a definitive ranking. Product availability, technical specifications, regional service, and suitability vary by project.
There is no single manufacturer that is ideal for every cooling tower.
The appropriate choice depends on the tower type, water quality, thermal requirements, fill material, replacement dimensions, budget, and local technical support.
PVC cooling tower fill is produced by a range of specialized manufacturers and cooling tower companies, including Brentwood and other international suppliers.
The right supplier depends on whether you need OEM replacement, customized fill, high-efficiency film fill, or fouling-resistant media.
There is no fixed replacement interval.
EVAPCO notes that fill may need replacement once or twice during the life of a cooling tower, while actual longevity depends strongly on water quality, air quality, and proper operation.
Neither is universally better.
Film fill generally provides a large heat-transfer surface in a compact volume, while splash fill can be advantageous when water quality, debris, or fouling makes film fill difficult to maintain.
The answer depends on operating temperature, water chemistry, tower design, and project requirements.
PVC is widely used for conventional applications, while PP can be considered for certain higher-temperature or chemically demanding environments.
Yes.
Customized fill can be manufactured according to specific dimensions, flute patterns, thicknesses, materials, and installation requirements.
This can be particularly useful for older towers or replacement projects where standard sizes do not fit.
The global cooling tower fill market includes large cooling tower manufacturers, specialized fill-media companies, and component suppliers.
Companies such as Brentwood Industries, SPX Cooling Tech/Marley, BAC, EVAPCO, Paharpur, KUKEN, Filling Technologies, and other specialized suppliers offer different combinations of technology, engineering, manufacturing, and replacement support.
For buyers, the most important question is not simply:
“Which cooling tower fill manufacturer is number one?”
A more useful question is:
“Which manufacturer can provide the right fill for my tower, water quality, thermal requirements, and operating environment?”
Before purchasing, compare the fill material, geometry, dimensions, heat-transfer performance, pressure drop, fouling resistance, service life, customization capability, and after-sales support.
For replacement projects, accurate measurements and tower information are especially important. The right cooling tower fill media can help maintain heat-transfer performance, improve operating reliability, and extend the useful life of an existing cooling tower.
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