Views: 0 Author: Cindy Publish Time: 2026-09-24 Origin: Site
When people search for “fill material in cooling tower,” they are usually looking for more than a piece of plastic.
They are looking for a material that can survive continuous contact with hot water, air, chemicals, suspended solids and mechanical loading while still helping the cooling tower reject heat efficiently.
And that is where supplier selection becomes important.
Cooling tower fill is the working surface where water and air interact. The right fill can improve heat transfer, maintain stable cooling performance and support efficient tower operation. The wrong fill—or the right fill installed in the wrong application—can result in clogging, excessive pressure drop, poor water distribution and reduced thermal performance.
So, who supplies cooling tower fill material around the world?
In this guide, we introduce five notable cooling tower fill material suppliers, with Power Tower Cooling Technology (Shaoxing) Co.,Ltd listed first as requested.
The list includes manufacturers and suppliers with different strengths, from dedicated cooling tower components to complete replacement kits and large industrial cooling solutions.
Important: This is an editorial buyer's guide, not an official global market-share ranking. Product ranges, regional availability and technical specifications should always be confirmed directly with each supplier before purchasing.
Fill material in cooling tower refers to the heat-transfer media installed inside a wet cooling tower.
Its basic job sounds simple: make water and air contact each other as effectively as possible.
But there is a lot happening inside that fill section.
Hot circulating water enters the tower and is distributed over or through the fill. Air moves through the same area. As the water spreads into thin films or breaks into droplets, its contact area with the air increases. A small portion of the water evaporates, carrying heat away from the remaining water.
Think of the fill as the “workbench” of the cooling tower.
Without enough effective contact between water and air, the tower cannot achieve the cooling performance expected from its design.
There are two basic ways cooling tower fill creates water-air contact.
Film fill spreads water across specially shaped sheets. The sheets contain channels, flutes or corrugations that encourage water distribution while allowing air to pass through.
Splash fill works differently. Instead of maintaining a continuous thin film, it repeatedly breaks falling water into smaller droplets.
The objective is the same: increase the effective water-air interface.
EVAPCO describes the process in similar terms, noting that film fill spreads liquid over wetted surfaces while splash fill breaks falling water into droplets to increase exposure to the air stream.
The design choice depends heavily on water quality, thermal requirements and tower configuration.
Why spend so much time choosing the right fill?
Because fill affects several parts of cooling tower performance at once.
A well-designed fill can provide:
Effective heat transfer
Good water distribution
Appropriate airflow resistance
Long service life
Suitable fouling resistance
Stable operation
Easier maintenance
Compatibility with the existing tower
On the other hand, a fill that is too restrictive for dirty water can become clogged. A material that is not suitable for the operating temperature can deform. A fill with incorrect dimensions may not distribute water correctly.
In other words, fill material is not just a spare part. It is a performance component.
Before choosing a supplier, you need to understand what you are actually buying.
PVC is one of the most widely used materials for cooling tower film fill.
It is commonly formed into corrugated sheets and assembled into fill packs. The geometry creates a large wetted surface while allowing air to move through the fill.
PVC film fill is particularly common in applications where water quality can be controlled and high heat-transfer performance is required.
For example, EVAPCO's EVAPAK fill is constructed from PVC and is designed for evaporative cooling applications; EVAPCO also offers different fill configurations for replacement applications.
But don't assume every PVC fill is identical.
Sheet thickness, flute geometry, bonding method, fill depth, surface configuration and block dimensions can all affect the final result.
Polypropylene, or PP, is another material used for cooling tower fill.
PP can be considered for applications where the material's chemical or temperature characteristics provide an advantage.
It is especially important to evaluate the actual operating environment before selecting PP.
Ask yourself:
What is the water temperature?
What chemicals are present?
How concentrated are they?
How much suspended material is in the water?
Is the tower exposed to sunlight?
How frequently will the fill be cleaned?
Material selection should be based on the complete application—not simply on a material name.
Film fill is designed to create a thin layer of water over a large surface area.
This makes it attractive when high heat-transfer efficiency is a priority.
Brentwood, for example, offers several film-fill configurations, including cross-fluted, herringbone, offset-fluted and vertical-fluted designs. The company says its designs balance thermal performance, pressure drop and fouling resistance.
This illustrates an important point:
“Film fill” describes a design family, not one single product.
Two film fills can look similar but perform differently because their flute geometry and operating characteristics are different.
Splash fill is often selected for water systems where fouling is a serious concern.
Instead of relying on narrow film-fill passages, splash designs use open structures that break water into droplets.
Brentwood describes splash fill as particularly suitable for applications involving high suspended solids or contaminated circulating water.
The trade-off is that splash and film systems have different thermal characteristics, dimensions and tower requirements.
So, again, don't choose based on price alone.
A supplier should offer more than a quotation.
The best sourcing process starts with engineering information.
First, ask exactly what material is being supplied.
Is it PVC?
PP?
Another polymer?
What is the thickness?
What operating temperature is it designed for?
Is the material stabilized for the intended environment?
These details matter because cooling tower fill spends its working life in a demanding environment.
The fill needs to perform thermally—not simply look correct.
Ask the supplier about the intended application, water loading, airflow, fill depth and expected thermal characteristics.
A supplier with genuine technical experience should be able to discuss these factors.
Replacement projects are rarely as simple as ordering “one cooling tower fill.”
Existing towers may use different dimensions, support arrangements, sheet configurations and fill depths.
A supplier that can customize dimensions can therefore be valuable when an original component is no longer available.
For large industrial projects, production capacity matters.
You may need hundreds or thousands of fill blocks.
The supplier should be able to discuss production lead time, packaging, loading, shipping and quality control.
That's especially important for international projects.
Best suited for: Direct manufacturer sourcing, cooling tower fill replacement and customized fill solutions
Power Tower Cooling Technology (Shaoxing) Co.,Ltd
For this guide, Power Tower Cooling Technology (Shaoxing) Co.,Ltd is listed first.
Power Tower focuses on cooling tower components and replacement solutions through CoolingTowerPart.
Its product scope includes cooling tower fill and related components for different tower configurations and replacement requirements. Its published technical guidance emphasizes matching fill to factors such as tower type, existing dimensions, water flow, operating temperature, water quality and fill configuration.
That approach is particularly useful for replacement projects.
Why?
Because buying fill is not really about finding a generic plastic block.
It is about finding a component that fits the tower and works under its actual operating conditions.
Power Tower's cooling tower component range includes solutions such as:
PVC cooling tower fill
PP cooling tower fill
Counterflow fill
Crossflow fill
Replacement fill packs
Customized fill solutions
Drift eliminators
Spray nozzles
Other cooling tower components
The company also emphasizes the importance of providing detailed tower information before selecting replacement fill.
For buyers, that means the inquiry process can start with practical data rather than simply asking, “How much is your fill?”
Power Tower can be particularly relevant when the project requires direct manufacturer communication.
For example, a buyer can prepare:
Cooling tower manufacturer
Tower model
Crossflow or counterflow configuration
Existing fill dimensions
Fill height and depth
Water flow
Hot-water temperature
Cold-water temperature
Water quality
Existing fill photographs
Required quantity
That information makes it much easier to discuss the correct replacement solution.
For international buyers looking for a dedicated cooling tower component supplier rather than a general HVAC distributor, this manufacturer-focused approach can be useful.
Best suited for: Advanced film fill, splash fill and engineered cooling tower components
Brentwood is a major cooling tower component supplier with a broad portfolio of fill technologies.
Its cooling tower product range includes film fills, trickle fills, splash fills, drift eliminators, louvers, fill supports and related accessories. Brentwood states that its cooling tower components are designed for different thermal-performance and water-quality requirements.
Its film-fill portfolio includes cross-fluted, herringbone, offset-fluted and vertical-fluted designs.
That variety is important because cooling tower applications are not one-size-fits-all.
Brentwood's splash-fill range is particularly relevant for challenging water conditions.
The company describes modular splash fills as an alternative when high suspended solids make conventional film fill unsuitable.
Its splash-bar products are also designed for applications involving compromised water, dust, sand or process contaminants.
Brentwood also provides fill supports and other installation components, which can be important during a full fill replacement project.
For buyers who need engineered fill technology across different tower types and water-quality conditions, Brentwood is therefore a notable supplier to evaluate.
Best suited for: OEM cooling towers and model-specific replacement fill kits
BAC is another major name in evaporative cooling.
Its portfolio includes cooling towers, closed-circuit cooling towers, evaporative condensers and replacement components.
For fill buyers, one of BAC's notable strengths is its replacement fill kit approach.
BAC publishes replacement fill kits for several of its cooling tower models.
Its BACross replacement kits, for example, are designed for specific Series 3000, Series 1500 and other units. The kits can include fill and associated installation components. BAC also offers replacement kits for other cooling tower configurations.
This is valuable when the buyer does not want to source loose fill material separately.
Instead, the replacement package can be matched to a particular cooling tower model.
For an owner managing an existing BAC installation, this model-specific approach can simplify the replacement process.
BAC's product portfolio also demonstrates the broader context: cooling tower fill is only one part of a complete evaporative cooling system.
Best suited for: OEM and replacement fill solutions across evaporative cooling equipment
EVAPCO has a long-standing presence in evaporative cooling and heat rejection equipment.
Its fill portfolio includes EVAPAK® and other fill configurations, including PVC-based solutions.
EVAPCO states that its EVAPAK fill uses inert PVC and is designed for heat transfer in cooling towers. Certain configurations are specified for water temperatures up to 130°F, with higher-temperature fill available for some applications.
One interesting point for replacement buyers is that EVAPCO does not limit its parts offering to EVAPCO equipment.
The company's FAQ states that replacement parts can be supplied for cooling equipment from other manufacturers, with its custom design team able to evaluate and design parts for specific replacement projects.
EVAPCO also publishes crossflow replacement fill kits and maintains a dedicated parts-and-service program.
The company notes that cooling tower fill typically needs replacement once or twice during the life of a cooling tower, although actual life depends heavily on water quality, air quality and proper operation.
That is a useful reminder for every cooling tower owner:
Fill life is an operating-condition issue, not simply an age issue.
Best suited for: Large industrial and power-sector cooling applications
ENEXIO is another company worth considering when the project involves large industrial or power-generation cooling systems.
Its cooling tower activities include engineering and manufacturing of cooling tower internals such as fill systems and drift eliminators.
For large projects, the important question is often not simply whether a supplier sells PVC fill.
The question becomes:
Can the supplier understand the thermal and hydraulic requirements of a large cooling tower?
Can it support engineering?
Can it manufacture the required tower internals?
Can it manage a large project schedule?
That is where specialist industrial cooling companies can become valuable.
For buyers comparing global fill suppliers, ENEXIO is therefore relevant particularly when the project extends beyond a straightforward small replacement order.
| Supplier | Main Strength | Fill Focus | Suitable For |
|---|---|---|---|
| Power Tower Cooling Technology | Direct manufacturer and replacement sourcing | PVC, PP, crossflow, counterflow and customized fill | International replacement and bulk buyers |
| Brentwood Industries | Engineered cooling tower components | Film, trickle and splash fill | Industrial and demanding water conditions |
| Baltimore Aircoil Company | OEM systems and replacement kits | Model-specific replacement fill | BAC equipment and replacement projects |
| EVAPCO | Evaporative cooling and aftermarket parts | PVC fill and replacement kits | OEM and replacement applications |
| ENEXIO | Industrial and power cooling | Industrial cooling tower internals | Large industrial projects |
This comparison should not be interpreted as a universal “best-to-worst” ranking.
Each company has a different business model.
For example, a factory purchasing customized replacement fill may have different requirements from a power plant looking for a complete cooling tower refurbishment.
Choosing the right supplier is important.
Choosing the right fill is even more important.
Start with water quality.
If the water contains high suspended solids, dirt, biological growth or process contaminants, narrow film-fill passages may be more vulnerable to fouling.
In those conditions, a more open fill design may be worth considering.
Brentwood specifically positions its splash-fill products for high suspended-solids and contaminated-water applications.
Is your tower crossflow or counterflow?
That question matters.
Fill geometry must work with the direction of water and air movement.
A replacement fill that physically fits into the tower may still be thermally unsuitable if its design does not match the original application.
Temperature is another key factor.
PVC is widely used in cooling tower fill, but every product has its own operating limits.
Do not simply ask whether “PVC can handle hot water.”
Ask the supplier about the specific fill product, material formulation, temperature limit and safety margin.
For example, EVAPCO publishes different temperature specifications for its PVC fill products.
This is one of the most common mistakes in replacement projects.
Don't measure only the cooling tower.
Measure the existing fill whenever possible.
Record:
Length
Width
Height
Fill depth
Sheet thickness
Block arrangement
Support spacing
Quantity
Water direction
Air direction
Take photographs.
If possible, provide the original tower model and old fill drawings.
Five minutes spent measuring can save days of installation trouble.
Cooling tower fill does not necessarily need to be replaced just because it has been in service for a certain number of years.
Inspect its physical condition first.
Look for:
Cracked sheets
Collapsed fill packs
Severe scaling
Biological buildup
Blocked passages
Deformation
Brittle material
Poor water distribution
Reduced cooling performance
Increasing pressure drop
EVAPCO notes that fill life is strongly influenced by water and air quality as well as proper operation.
This makes maintenance extremely important.
Sometimes cleaning is enough.
Sometimes the fill has reached the point where cleaning is simply putting lipstick on a broken machine.
If the structure is damaged or permanently deformed, replacement is usually the more logical solution.
The cheapest fill is not necessarily the cheapest solution.
If it clogs quickly, requires frequent replacement or causes thermal performance to deteriorate, the initial saving can disappear very quickly.
It isn't.
Different flute designs and sheet configurations can have very different performance characteristics.
Brentwood's product range itself demonstrates how many different film-fill geometries are available.
This is perhaps the biggest mistake.
A fill designed for clean water may not be appropriate for heavily contaminated process water.
Always tell the supplier what is actually circulating through the tower.
“It's a 500-ton cooling tower” is not enough information.
Two towers with the same nominal capacity can use different fill arrangements.
Give the supplier actual measurements.
Before placing an order, ask:
What fill material do you recommend for my water quality?
Is the fill designed for crossflow or counterflow?
What operating temperature is it rated for?
What are the fill dimensions?
What sheet thickness is being supplied?
What is the expected service life under my conditions?
Can you manufacture custom dimensions?
Can you provide replacement supports?
Can you supply drift eliminators and nozzles?
Can you provide technical drawings before production?
A serious supplier should welcome these questions.
If a supplier only wants to know the quantity and then immediately gives you a price, slow down.
You are buying a heat-transfer component, not a box of generic plastic.
There is no single best material for every cooling tower.
PVC film fill is widely used for efficient heat transfer, while PP can be considered for certain demanding applications. Splash fill may be more appropriate when fouling and suspended solids are major concerns.
The correct choice depends on water quality, temperature, tower design and thermal requirements.
Neither is automatically better.
PVC is widely used for conventional film-fill applications. PP may offer advantages in applications where its material properties are more suitable.
The operating conditions should determine the choice.
There is no universal lifespan.
EVAPCO states that cooling tower fill may need replacement once or twice during the life of a cooling tower, while also noting that water quality, air quality and operating practices strongly influence longevity.
Film fill spreads water into thin layers across a large surface area.
Splash fill breaks falling water into droplets.
Film fill can provide high thermal performance in suitable water conditions, while splash designs can offer stronger fouling resistance for difficult water.
Yes.
Replacement fill can often be manufactured according to existing dimensions, tower configuration and application requirements.
This is particularly useful for older cooling towers where the original fill is no longer readily available.
You can purchase cooling tower fill from dedicated component manufacturers, cooling tower OEMs, industrial engineering companies and aftermarket suppliers.
For international replacement projects, compare technical capability, customization, material quality, dimensions, production capacity and shipping arrangements—not just unit price.
The phrase “fill material in cooling tower” may sound like a simple product search.
It isn't.
The fill is one of the most important functional components inside a wet cooling tower. It controls how water spreads, how effectively air contacts the water and how efficiently the tower can reject heat.
That is why supplier selection deserves careful attention.
In this guide, Power Tower Cooling Technology (Shaoxing) Co.,Ltd is listed first as a dedicated cooling tower component and replacement supplier, with coolingtowerpart.com providing access to its cooling tower fill and related products.
Brentwood brings a broad range of engineered film, trickle and splash-fill technologies. Baltimore Aircoil Company offers model-specific replacement kits and complete evaporative cooling equipment. EVAPCO provides OEM and aftermarket fill solutions, while ENEXIO is relevant for larger industrial and power-sector cooling applications.
But remember one thing before you place an order:
The right fill is the fill that matches your tower.
Check the water.
Check the temperature.
Check the airflow.
Check the dimensions.
Check the fouling risk.
Then choose the material and supplier.
Do that, and your cooling tower fill becomes more than a replacement component—it becomes part of a reliable long-term cooling strategy.
