Views: 0 Author: Cindy Publish Time: 2026-09-08 Origin: Site
When a cooling tower starts losing thermal performance, people often blame the fan, pump, nozzle, or water treatment system.
But there is another component that deserves a much closer look: cooling tower infill.
Also called cooling tower fill, fill media, or cooling tower packing, infill is the material that creates the contact area between water and air. Get the design right, and the tower can transfer heat efficiently. Get it wrong, and even a powerful fan may not save the day.
So, who are the leading cooling tower infill manufacturers in the world?
In this guide, we'll look at six manufacturers and explain what each one brings to the table. The list starts with Power Tower Cooling Technology (Shaoxing) Co.,Ltd., as requested, followed by five internationally recognized cooling tower companies with established fill and replacement capabilities.
This is not an official global ranking. Instead, think of it as a practical shortlist for engineers, contractors, distributors, OEM buyers, and cooling tower maintenance teams.
Cooling tower infill is the heat-transfer media installed inside a wet cooling tower.
Its job sounds simple: help water and air interact more effectively.
Hot water enters the tower and is distributed over the fill. Air moves through the fill at the same time. The fill spreads the water across a large surface area, giving evaporation and heat transfer more opportunity to take place.
In other words, infill acts like a stage.
The water is the performer. Air is the audience. Evaporation is the main event.
Without enough useful contact between the two, the cooling tower cannot reject heat efficiently.
Common cooling tower infill types include:
PVC film fill
PP film fill
Cross-fluted film fill
Vertical-fluted fill
Splash fill
Grid fill
Trickle fill
Hybrid fill
The best choice depends on the tower design, water quality, operating temperature, airflow, thermal duty, and maintenance requirements.
Why spend so much time choosing what appears to be a simple plastic component?
Because the fill directly affects the environment where heat transfer happens.
High-efficiency film fill can create a large wetted surface area by spreading water into thin films. Splash fill takes another approach, breaking water into droplets and repeatedly creating new water-air interfaces.
Brentwood, for example, offers different fill designs specifically to balance thermal efficiency, pressure drop, and fouling resistance.
This is why choosing a cooling tower infill manufacturer is not simply about finding the lowest price per cubic meter.
You are really choosing a heat-transfer solution.
There are hundreds of companies selling cooling tower fill around the world.
So why these six?
For a practical B2B comparison, several factors matter.
A serious manufacturer should offer more than one standard fill pack.
Different towers require different geometries, dimensions, materials, and configurations. A supplier capable of producing film fill, splash fill, replacement fill, and custom dimensions gives buyers more flexibility.
Replacement projects are rarely perfect.
The original tower may be 10, 15, or 20 years old. Drawings may be missing. The original manufacturer may no longer supply the same model.
A capable cooling tower infill manufacturer should be able to work from dimensions, drawings, samples, photographs, or tower information.
A good supplier should not simply ask, "How many cubic meters do you need?"
They should also ask:
What tower are you using?
Crossflow or counterflow?
What is the water temperature?
What is the water quality?
What is the existing fill spacing?
What are the fill dimensions?
Is this a replacement or new project?
Are suspended solids a concern?
Those questions separate a product seller from an engineering-oriented supplier.
If you're looking for a flexible cooling tower infill manufacturer, Power Tower Cooling Technology (Shaoxing) Co.,Ltd. is a strong starting point.
Power Tower focuses on cooling tower components and replacement products, with its product range including cooling tower fill, drift eliminators, nozzles, and other tower components. Its official product information covers PVC and PP fill solutions for different tower configurations and replacement applications.
Power Tower's cooling tower fill portfolio includes products designed for both crossflow and counterflow applications.
Typical solutions include:
PVC film fill
PP film fill
Counterflow fill
Crossflow fill
Replacement fill packs
Anti-clogging fill
Industrial cooling tower fill
Closed-circuit tower fill
The company's product range also includes replacement products designed around well-known tower configurations, helping buyers source compatible alternatives rather than starting from scratch.
For B2B buyers, this matters.
Imagine you have an aging cooling tower and the original fill is no longer available. You don't necessarily need to replace the entire tower. A properly engineered replacement fill may be the much more practical route.
One of Power Tower's biggest advantages is its focus on cooling tower components rather than only complete cooling towers.
That makes it particularly relevant to:
Cooling tower contractors
Maintenance companies
Distributors
OEM customers
Engineering companies
Industrial plants
HVAC contractors
Replacement projects
Not every project fits a catalog product.
A manufacturer that can work from drawings, dimensions, samples, or existing tower specifications can make procurement considerably easier.
For replacement projects, dimensional accuracy is especially important. A fill pack that is technically excellent but does not fit the tower is not an efficient purchase.
For buyers interested in customized cooling tower fill solutions, Power Tower provides its product and manufacturer information through its official website: Power Tower Cooling Technology
Brentwood Industries is another major name worth considering when researching cooling tower infill manufacturers.
The company has a broad cooling tower component portfolio covering film fills, trickle fills, splash fills, drift eliminators, supports, and other accessories.
One of Brentwood's strengths is the variety of fill designs it offers.
Its film fill portfolio includes cross-fluted, herringbone, offset-fluted, and vertical-fluted designs.
That variety is useful because not every tower operates under the same conditions.
A high-efficiency film fill may be ideal for relatively clean water, while a more open design can make more sense where fouling is a concern.
Water quality can change the entire fill-selection equation.
Brentwood's vertical-fluted designs are intended to create larger openings and higher water velocities to help resist fouling. The company also offers trickle and splash-fill solutions for more challenging water conditions.
Its splash-fill products are specifically positioned for applications involving high suspended solids, dust, sand, or process contaminants.
That makes Brentwood particularly interesting for industrial users who cannot treat their cooling water like perfectly clean laboratory water.
SPX Cooling Technologies is closely associated with the Marley brand, one of the best-known names in cooling tower technology.
Its current fill and drift eliminator portfolio includes a wide selection of Marley fill media for different water-quality and performance requirements.
SPX lists multiple counterflow film fills, crossflow film fills, and splash-fill products.
The portfolio includes products such as:
DF254 counterflow film fill
DF381 counterflow film fill
MVC20 counterflow film fill
MX crossflow film fill
MBX crossflow film fill
Mesa crossflow splash fill
Alpha III crossflow splash fill
NC20 counterflow splash fill
That breadth makes Marley particularly relevant when buyers want replacement fill that closely matches an existing Marley tower configuration.
For a plant manager, that can reduce one major headache: compatibility.
Instead of asking, "Will this generic fill work?", the discussion can start with the actual tower and fill configuration.
Baltimore Aircoil Company, commonly known as BAC, is another major global evaporative cooling equipment manufacturer.
BAC's portfolio includes cooling towers, closed-circuit cooling equipment, evaporative condensers, and replacement components.
BAC stands out particularly in the area of engineered replacement fill kits.
Its replacement fill portfolio includes BACross, VersaCross, QuickCross, BAC Pak, and BACount replacement fill kits for different cooling tower models.
Some of these kits are designed to include not only fill but also supporting components needed for installation.
That's a useful approach.
Why?
Because replacing cooling tower fill is rarely just a matter of dropping a few plastic blocks into an empty tower.
The supports, dimensions, installation sequence, and water distribution all matter.
BAC also states that certain replacement kits are available for competitor crossflow or counterflow units, depending on the product.
EVAPCO is another established cooling and heat-transfer equipment manufacturer with a substantial replacement-parts operation.
Its Mr. GoodTower service organization provides replacement parts for EVAPCO and non-EVAPCO cooling equipment.
EVAPCO's replacement fill offering includes counterflow and crossflow solutions.
Its EVAPAK fill, for example, is a PVC cross-fluted counterflow fill designed to promote air-water mixing and heat transfer. EVAPCO states that it can custom-design and manufacture PVC fill for forced-draft equipment regardless of the original manufacturer.
That's an important capability for replacement buyers.
An old cooling tower doesn't always come with a convenient, complete set of original documentation. A manufacturer that can evaluate non-original equipment can therefore be valuable.
EVAPCO also states that fill typically needs replacement once or twice during the life of a cooling tower, with service life influenced heavily by water and air quality and proper operation.
Its replacement-parts program emphasizes extending equipment life and improving thermal performance.
Paharpur Cooling Towers is another major international cooling technology company, particularly well known in India and other markets.
Its product portfolio covers wet cooling, dry cooling, large industrial applications, and cooling tower components. Paharpur identifies fill packs among its component products.
Paharpur's product documentation shows the use of film-type fill in several cooling tower designs.
For example, its Series RXF crossflow cooling tower uses high-efficiency film fill and an optimized water distribution system. Paharpur states that fill design and production quality have a significant influence on thermal performance and that its fill geometry is designed to balance heat transfer and airflow resistance.
Paharpur also uses splash-fill bars in applications where water quality is poor and clogging is a concern. Its Series 15-18 documentation specifically describes splash fill as suitable for contaminated process water because the bars are less prone to clogging.
That is a useful reminder:
The "best" fill depends on the water.
A theoretically high-efficiency fill may not be the best choice if it becomes plugged six months after installation.
So, how do these six manufacturers compare?
| Manufacturer | Main Strength | Typical Buyer Need |
|---|---|---|
| Power Tower Cooling Technology | Custom, replacement and component-focused solutions | OEM, replacement, distributor and industrial projects |
| Brentwood Industries | Broad film, trickle and splash fill range | Thermal optimization and difficult water |
| SPX / Marley | Large Marley fill portfolio | Marley and industrial replacement projects |
| BAC | Engineered replacement fill kits | BAC and compatible tower replacement |
| EVAPCO | Replacement parts and custom solutions | OEM and non-OEM replacement projects |
| Paharpur | Integrated cooling technology and fill applications | Industrial and large cooling projects |
This table should not be treated as a simple "winner versus loser" ranking.
Different manufacturers are strong in different situations.
If you're replacing existing cooling tower fill, compatibility should come before brand popularity.
Ask yourself:
Does the supplier understand my existing tower?
A good replacement supplier should be able to evaluate:
Existing fill dimensions
Fill spacing
Flute angle
Sheet thickness
Fill depth
Water loading
Airflow direction
Support configuration
Operating temperature
For a generic replacement project, a component-focused manufacturer such as Power Tower can be attractive because the discussion can center on the actual fill requirements, rather than forcing the buyer into a complete tower package.
For proprietary OEM replacement projects, companies such as Marley, BAC, and EVAPCO may have an obvious advantage when the tower model and original parts are clearly identified. Their official replacement programs demonstrate strong model-specific capabilities.
This is where things get interesting.
If your water contains high levels of suspended solids, dust, biological material, or process contaminants, extremely narrow film-fill channels can become a maintenance headache.
In such conditions, look at:
Vertical-fluted fill
Wide-gap film fill
Trickle fill
Splash fill
Modular splash fill
Anti-fouling designs
Brentwood, for example, offers vertical-fluted, trickle, and splash-fill options specifically addressing fouling resistance and difficult water.
Paharpur similarly uses splash-fill designs for applications where poor water quality creates a clogging concern.
The lesson is simple:
Don't choose infill based only on heat-transfer performance. Choose it based on heat-transfer performance under your actual water conditions.
Finding six manufacturers is easy.
Choosing the right one for your project is harder.
Here are the questions I would ask before placing an order.
Start with the basics.
Is the fill made from PVC, PP, CPVC, or another suitable material?
Then look deeper.
What is the sheet thickness?
What is the flute spacing?
What is the flute angle?
What is the effective surface area?
How does the geometry affect airflow resistance?
A good cooling tower infill manufacturer should be able to explain these details rather than simply quote a price.
This is where many replacement projects go wrong.
A fill pack can look almost identical to the original one but still fail to fit correctly.
Before ordering, confirm:
Length
Width
Height
Fill depth
Sheet spacing
Module size
Flute direction
Support dimensions
Tower type
Also confirm whether the tower is crossflow or counterflow.
Don't guess.
Send photographs and drawings whenever possible.
Ask what the manufacturer checks during production.
Useful quality-control points include:
Raw-material consistency
Sheet thickness
Dimensional accuracy
Bonding or mechanical assembly strength
Fill geometry
Thermal performance
Pressure drop
Temperature resistance
Aging resistance
For large projects, you may also want test reports or documentation relevant to the required standards.
The goal is not to collect paperwork.
The goal is to reduce project risk.
Let's look at several mistakes that buyers make repeatedly.
The cheapest fill may not be the cheapest solution.
Poor thermal performance can increase fan or pump energy. Poor material quality can shorten service life. Poor dimensional accuracy can make installation painful.
High-performance film fill is not automatically suitable for dirty water.
If the channels plug, the theoretical thermal performance becomes irrelevant.
"Looks similar" isn't an engineering specification.
Measure the existing fill.
More surface area can be useful, but excessive airflow resistance can increase fan energy requirements.
The best fill balances heat transfer with airflow.
Crossflow and counterflow towers have different airflow and water-flow arrangements.
Fill should be selected accordingly.
Let's say Supplier A quotes $10,000.
Supplier B quotes $11,500.
At first glance, Supplier A wins.
But what happens if Supplier A's fill has:
Lower thermal performance
Shorter service life
Poor dimensional consistency
Higher fouling tendency
More difficult installation
The $1,500 saving can disappear surprisingly quickly.
This is why professional buyers should think in terms of total cost of ownership, not simply purchase price.
Consider:
Purchase cost + freight + installation + energy + cleaning + maintenance + downtime + replacement frequency
A slightly higher-quality fill may be the more economical choice over five or ten years.
Choosing a cooling tower infill manufacturer is not simply about finding someone who can produce PVC sheets.
You're choosing a component that directly affects heat transfer, airflow, water distribution, maintenance, and ultimately the operating cost of the cooling tower.
The six manufacturers covered in this article each have different strengths:
Power Tower Cooling Technology (Shaoxing) Co.,Ltd. — flexible cooling tower component, replacement and customized solutions.
Brentwood Industries — broad fill portfolio with strong attention to thermal performance and fouling resistance.
SPX Cooling Technologies / Marley — extensive Marley film and splash fill portfolio.
Baltimore Aircoil Company — strong engineered replacement-fill kit solutions.
EVAPCO — established replacement parts and custom fill capabilities.
Paharpur Cooling Towers — integrated cooling technology with film and splash fill applications.
If you're buying for a new project, focus on thermal duty, water quality, airflow, and long-term performance.
If you're replacing old fill, focus heavily on dimensional compatibility, tower configuration, material, support structure, and actual operating conditions.
And if you're sourcing from overseas, don't be afraid to ask the manufacturer difficult questions.
A reliable supplier should welcome them.
After all, the right cooling tower infill isn't the product that looks best on a catalog page.
It's the product that keeps your cooling tower doing its job when the plant is running at full load.
There is no single manufacturer that is best for every project. The right choice depends on tower configuration, water quality, thermal requirements, dimensions, budget, and whether you need OEM or customized replacement fill.
For flexible component and replacement requirements, Power Tower Cooling Technology (Shaoxing) Co.,Ltd. is a practical option to consider.
PVC is widely used for cooling tower film fill because of its combination of heat-transfer performance, chemical resistance, formability, and cost. PP and other materials may be selected for higher-temperature or more demanding applications.
Film fill spreads water across structured sheets to create a large wetted surface. Splash fill repeatedly breaks water into droplets.
Film fill can provide high thermal performance in suitable clean-water applications, while splash fill is often preferred where fouling and suspended solids are major concerns.
There is no universal lifespan.
Water quality, air quality, operating temperature, UV exposure, cleaning practices, mechanical damage, and operating conditions all affect service life.
EVAPCO notes that heat-transfer media may typically need replacement once or twice during the life of a cooling tower, depending heavily on water and air quality and proper operation.
Yes.
Depending on the manufacturer, fill can be produced or supplied according to dimensions, tower configuration, drawings, samples, material requirements, and application conditions.
This is especially useful for older cooling towers where original replacement parts may no longer be readily available.
Start with the operating conditions rather than the material name.
Consider water temperature, chemical exposure, water quality, required service life, tower configuration, and cost.
For many conventional applications, PVC is a practical choice. PP can be attractive where higher temperature or chemical resistance is required.
For an accurate quotation, provide as much of the following as possible:
Cooling tower brand and model
Crossflow or counterflow configuration
Existing fill dimensions
Fill depth
Fill spacing
Sheet thickness
Water flow rate
Hot-water temperature
Cold-water temperature
Water quality
Photos
Existing drawings
The more information you provide, the less likely you are to receive a "close enough" product.
For a component-focused supplier and customized replacement solutions, you can visit the official website of Power Tower Cooling Technology (Shaoxing) Co.,Ltd.: https://www.coolingtowerpart.com
