Views: 0 Author: Lisa Publish Time: 2026-08-21 Origin: Site
Cooling tower fill is one of the most important components in a wet cooling tower. It increases the contact area between circulating water and air, allowing heat to be transferred more efficiently through evaporation. Among the different materials available, PVC cooling tower fills are widely used because they offer a practical combination of heat-transfer performance, dimensional stability, chemical resistance, and cost effectiveness for many applications.
For cooling tower owners, maintenance contractors, EPC companies, and industrial buyers, selecting a reliable cooling tower fill supplier is essential. The right supplier should be able to provide suitable PVC film fill, replacement fill blocks, technical specifications, compatible dimensions, and support for counterflow or crossflow cooling tower applications.
This article introduces five established cooling tower fill suppliers and manufacturers that buyers may consider when sourcing PVC cooling tower fills. The list is intended as a practical supplier-selection guide rather than a definitive ranking, because the best supplier depends on tower type, thermal duty, water quality, location, and replacement requirements.
| Supplier | Key Strength | Typical Fill Offering | Best For |
|---|---|---|---|
| Power Tower | Replacement and OEM-compatible cooling tower parts | PVC/PP film fill and replacement media | Industrial replacement and custom sourcing |
| Brentwood Industries | Engineered cooling tower fill solutions | PVC film fill and related tower media | Industrial and utility applications |
| SPX Cooling Technologies / Marley | Original cooling tower technology | Marley-compatible fill and thermal components | Marley cooling tower replacement |
| Baltimore Aircoil Company (BAC) | Integrated cooling tower systems | Factory-designed fill and replacement components | BAC equipment and aftermarket needs |
| EVAPCO | Cooling and heat-transfer equipment | Fill media for EVAPCO towers and systems | EVAPCO equipment and industrial cooling |
Important: Product availability, models, materials, dimensions, and regional distribution can vary. Buyers should confirm current specifications directly with each supplier before ordering.
Cooling tower fill is a heat-transfer medium installed inside a wet cooling tower.
Its purpose is to increase the amount of contact between hot circulating water and moving air.
Hot water enters the cooling tower and is distributed over the fill. The fill causes the water to spread into thin films or break into droplets, depending on the fill design. Air moves through the fill at the same time.
This increased water-air contact promotes evaporation and removes heat from the circulating water.
A typical cooling tower heat-transfer process can be simplified as:
Hot Water → Water Distribution → Cooling Tower Fill → Air-Water Heat Transfer → Cold Water Basin
The performance of the fill can have a major influence on the overall thermal performance of the tower.
PVC cooling tower fill is cooling tower heat-transfer media manufactured primarily from polyvinyl chloride.
PVC film fill is commonly formed into corrugated sheets. These sheets are assembled into blocks or modules and installed inside the cooling tower.
The corrugations create channels that encourage water to spread across the surface while allowing air to pass through.
PVC is widely used because it can provide:
Good water resistance
Suitable mechanical strength
Good dimensional stability
Lightweight construction
Efficient heat-transfer characteristics
Cost-effective manufacturing
Easy modular installation
The suitability of PVC depends on the actual operating temperature and water chemistry. Buyers should always verify the manufacturer's temperature and chemical compatibility specifications.
The purpose of PVC film fill is to maximize the effective contact between water and air.
Hot water from a process system, condenser, heat exchanger, or chiller enters the cooling tower.
Spray nozzles, distribution pipes, basins, or troughs distribute water over the fill.
The corrugated PVC sheets encourage the water to spread into thin films.
Fans or natural draft move air through the fill.
A portion of the circulating water evaporates. This evaporation removes heat from the remaining water.
The cooled water collects in the basin and is pumped back to the process or condenser system.
Cooling tower fill can generally be divided into film fill and splash fill.
| Characteristic | Film Fill | Splash Fill |
| Main mechanism | Water spreads into films | Water breaks into droplets |
| Typical material | PVC, PP | PVC, PP and other materials |
| Heat-transfer efficiency | Generally high | Depends on design |
| Compactness | High | Generally more open |
| Fouling tolerance | Depends on channel design | Often better for dirty water |
| Common use | Clean/treated water | Higher fouling applications |
PVC film fill is particularly common in modern mechanical-draft cooling towers.
Power Tower is a specialized source for cooling tower replacement parts, including cooling tower fill and related components.
For buyers looking for PVC cooling tower fill replacement, the key advantage of a specialized cooling tower parts supplier is the ability to source fill according to existing tower dimensions rather than purchasing only standardized equipment.
CoolingTowerPart.com can serve customers looking for replacement and aftermarket cooling tower components for industrial applications.
Potential sourcing requirements include:
PVC cooling tower film fill
PP cooling tower fill
Counterflow fill
Crossflow fill
Replacement fill blocks
Custom-size cooling tower fill
OEM-compatible cooling tower fill
A specialized aftermarket supplier can be useful when:
Original fill is discontinued
The cooling tower is older
Replacement dimensions are non-standard
OEM-compatible components are required
A complete tower replacement is unnecessary
Multiple cooling tower parts are being sourced together
For replacement projects, buyers should provide the tower model, fill dimensions, photographs, water temperature, water flow, and existing fill configuration whenever possible.
Brentwood Industries is an established manufacturer of plastics and engineered products with cooling tower fill solutions.
The company is known in the cooling tower industry for engineered fill and related heat-transfer media.
Its cooling tower products are used in industrial and utility applications where thermal performance and reliable fill design are important.
Brentwood cooling tower fill can be considered for applications involving:
Industrial cooling towers
Power generation
Process cooling
HVAC systems
Municipal and utility applications
Cooling tower refurbishment
Brentwood may be suitable for buyers looking for:
Engineered cooling tower fill
Established manufacturing capability
Industrial cooling applications
Replacement or retrofit solutions
Technical fill specifications
When selecting a product, buyers should compare the fill geometry, material, operating temperature, water loading, and pressure drop against the existing cooling tower requirements.
SPX Cooling Technologies, through its Marley brand, is one of the best-known names in the cooling tower industry.
Marley cooling towers are widely used in industrial and commercial applications, and the company offers cooling tower thermal components and replacement solutions.
For customers operating Marley cooling towers, sourcing compatible fill can be particularly important because the fill geometry and tower design are closely related to the original thermal performance.
Marley-related fill requirements may include:
Film fill
Splash fill
Replacement fill
Thermal performance components
Fill support systems
Marley is a logical supplier to investigate when:
The existing tower is a Marley cooling tower
Original equipment compatibility is important
The project requires established OEM support
The customer needs thermal components matched to a specific Marley tower
For aftermarket projects, however, buyers should compare OEM replacement products with qualified compatible alternatives based on technical specifications, lead time, and total cost.
Baltimore Aircoil Company (BAC) is a major manufacturer of evaporative cooling and heat-transfer equipment.
BAC cooling towers and evaporative equipment are used in commercial, industrial, HVAC, and process applications.
For BAC equipment owners, original or compatible fill should be selected according to the tower model and operating requirements.
Fill-related requirements can involve:
Factory-designed thermal media
Replacement fill
Film-fill systems
Crossflow and counterflow configurations
Cooling tower refurbishment
BAC is worth considering when the application involves:
BAC cooling tower equipment
Industrial process cooling
HVAC condenser-water systems
Replacement of original thermal components
Equipment-specific technical requirements
For a replacement project, the tower model and existing fill dimensions should be confirmed before ordering.
EVAPCO is a global manufacturer of evaporative cooling and heat-transfer equipment.
The company produces cooling towers and related thermal equipment for industrial, commercial, HVAC, refrigeration, and process applications.
For owners of EVAPCO cooling towers, original replacement components can be considered alongside qualified aftermarket alternatives.
Fill requirements may include:
Film fill
Replacement thermal media
Counterflow fill
Crossflow fill
Equipment-specific fill configurations
EVAPCO may be appropriate for buyers who prioritize:
OEM equipment compatibility
Established cooling tower technology
Industrial applications
Thermal performance
Equipment-specific replacement support
As with any cooling tower fill replacement, the product should be matched to the existing tower design and operating conditions.
The largest supplier is not necessarily the best supplier for every project.
The correct choice depends on the application.
Consider the following factors when evaluating cooling tower fill suppliers.
Identify the original cooling tower manufacturer.
Common brands include:
Marley
BAC
EVAPCO
Liang Chi
Hamon
Other industrial cooling tower manufacturers
The original manufacturer can often provide equipment-specific specifications.
Determine whether the tower is:
Counterflow: Water moves downward while air moves upward.
Crossflow: Water moves downward while air moves horizontally.
The fill configuration must match the tower's airflow and water-distribution arrangement.
Measure the existing fill carefully.
Important dimensions include:
Fill height
Block length
Block width
Sheet thickness
Number of modules
Flute configuration
Incorrect dimensions can cause installation problems or affect water and airflow distribution.
Temperature is especially important when selecting PVC fill.
Check:
Normal hot-water temperature
Maximum water temperature
Cold-water temperature
Continuous operating temperature
Always verify the actual allowable temperature range with the manufacturer.
Water chemistry strongly affects fill life.
Consider:
Suspended solids
Hardness
Scaling
Biological growth
Corrosion products
Process contaminants
Dirty-water applications may require an open-channel or splash-fill design rather than closely spaced film fill.
The replacement fill should be capable of achieving the required cooling duty.
Important parameters may include:
Water flow
Airflow
Water loading
Fill height
Fill surface characteristics
Entering water temperature
Leaving water temperature
Ambient wet-bulb temperature
When comparing different suppliers, do not compare only price.
A technical comparison should include:
| Specification | Why It Matters |
| Material | Determines temperature and chemical suitability |
| Fill height | Determines available heat-transfer volume |
| Sheet thickness | Affects strength and durability |
| Flute geometry | Influences water distribution and airflow |
| Surface area | Influences potential heat-transfer capability |
| Water loading | Determines suitable flow range |
| Pressure drop | Affects fan requirements |
| Operating temperature | Determines material suitability |
| Block dimensions | Determines installation compatibility |
| Fouling characteristics | Influences maintenance requirements |
PVC film fill provides extensive surface area for water-air contact.
Plastic film fill is relatively lightweight compared with many traditional fill materials.
Fill blocks can be installed and replaced in sections.
PVC is widely manufactured and can provide a cost-effective solution for many applications.
PVC is suitable for many wet cooling tower environments when correctly specified.
PVC film fill is available in configurations suitable for many counterflow and crossflow cooling towers.
PVC cooling tower fill is commonly used in:
Industrial plants use cooling towers to remove process heat from circulating water.
Commercial and industrial HVAC systems use cooling towers to reject heat from water-cooled chillers.
Cooling towers use heat-transfer fill to reject heat from condenser cooling-water systems.
Chemical plants require cooling systems for heat exchangers, reactors, condensers, and other process equipment.
Cooling towers support a wide range of heat-rejection applications.
Cooling tower systems are used for equipment and process-water cooling.
Manufacturing facilities use cooling water to control production temperatures.
Replacing old cooling tower fill can be an economical alternative to replacing the entire cooling tower.
Fill replacement may be considered when the existing media has:
Severe scaling
Blocked channels
Cracks
Brittleness
Deformation
Collapse
Biological fouling
Reduced heat-transfer performance
Before replacement, inspect the water distribution system and fill support structure.
Replacing damaged fill while leaving blocked nozzles or deteriorated supports unresolved may not restore the expected cooling performance.
To help a supplier identify the correct product, provide as much technical information as possible.
Manufacturer
Model
Tower type
Cooling capacity
Existing material
Fill height
Length
Width
Thickness
Flute pattern
Number of blocks
Hot-water temperature
Cold-water temperature
Circulating water flow
Ambient wet-bulb temperature
Water quality
Photos of existing fill
Photos of the cooling tower
Photos of water distribution system
Existing drawings, if available
This information can significantly reduce the risk of ordering incompatible replacement fill.
Buyers commonly have two choices when replacing cooling tower fill: OEM products or compatible aftermarket products.
| Factor | OEM Fill | Aftermarket Fill |
| Original equipment specification | Usually designed for the original tower | Can be engineered to match |
| Brand compatibility | Strong | Depends on supplier |
| Customization | May vary | Often flexible |
| Price | May be higher | Often competitive |
| Availability | Depends on OEM | Depends on supplier |
| Best use | Brand-specific replacement | Retrofit and replacement projects |
A qualified aftermarket supplier should provide technical specifications rather than asking customers to select a product based only on tower brand.
Proper maintenance can extend fill service life.
Look for:
Cracking
Deformation
Scaling
Biological growth
Blockage
Discoloration
Structural deterioration
Effective water treatment helps control scale, corrosion, suspended solids, and biological growth.
Blocked or damaged nozzles can create uneven water distribution.
Debris and excessive fouling can increase airflow resistance.
Cleaning methods should be compatible with the specific fill material and design.
Excessive water pressure can damage plastic fill.
Low initial cost does not necessarily mean low total cost.
Fill performance, service life, installation, and maintenance should all be considered.
A high-efficiency film fill may perform poorly if the water contains excessive suspended solids.
Assuming that all fill for the same tower brand is interchangeable can result in incorrect dimensions.
PVC fill must be suitable for the actual operating temperature.
Uneven water distribution can prevent new fill from operating effectively.
A fill with unsuitable airflow resistance may affect fan performance and energy consumption.
PVC cooling tower fill is a plastic heat-transfer medium used inside wet cooling towers. It increases water-air contact by spreading circulating water over structured surfaces.
The purpose of cooling tower fill is to increase the effective contact area and contact time between hot water and air, improving evaporative heat transfer.
PVC is widely used for cooling tower fill because it offers a combination of suitable mechanical properties, water resistance, manufacturability, and cost effectiveness for many operating conditions.
Service life depends on water quality, operating temperature, chemical treatment, UV exposure, mechanical conditions, and maintenance. There is no universal replacement interval.
PVC and PP have different temperature, chemical, and mechanical characteristics. PVC is widely used for conventional applications, while PP may be selected for certain higher-temperature or chemically demanding conditions.
Yes. PVC film fill can be manufactured or assembled in different block dimensions, heights, thicknesses, flute patterns, and configurations depending on the supplier and application.
Neither is universally better. Film fill generally offers high heat-transfer performance in suitable water-quality conditions, while splash fill can be advantageous for applications with higher fouling or suspended solids.
Consider the tower type, fill dimensions, water flow, hot-water temperature, water quality, airflow, thermal duty, fouling potential, and existing fill-support arrangement.
Yes. In many cases, deteriorated cooling tower fill can be removed and replaced while retaining the existing tower structure, distribution system, fan, and basin, subject to inspection and compatibility.
The appropriate supplier depends on the application and tower brand. CoolingTowerPart.com, Brentwood Industries, SPX Cooling Technologies/Marley, Baltimore Aircoil Company (BAC), and EVAPCO are five suppliers/manufacturers that buyers may consider. Product availability and technical suitability should be confirmed for each specific project.
Choosing the right cooling tower fill supplier is an important decision for maintaining the thermal performance of a wet cooling tower.
PVC cooling tower fills remain a popular choice for many industrial, commercial, HVAC, and process-cooling applications because they provide effective heat-transfer surfaces in a lightweight and modular configuration.
The five suppliers discussed in this guide—Power Tower Cooling Technology (Shaoxing) Co.,Ltdr, Brentwood Industries, SPX Cooling Technologies/Marley, BAC, and EVAPCO—represent different sourcing options, from specialized replacement-part suppliers to major cooling tower OEMs and engineered fill manufacturers.
However, supplier reputation alone should not determine the final purchase. The fill must match the actual cooling tower.
Before ordering, verify:
Cooling tower type
Existing fill dimensions
PVC material and temperature suitability
Water flow
Water loading
Water quality
Airflow
Fill pressure drop
Thermal requirements
Installation arrangement
For aftermarket or replacement projects, a supplier that can provide custom-size PVC cooling tower fill, technical specifications, OEM-compatible configurations, and replacement support can be particularly valuable.
The right cooling tower fill can help restore heat-transfer performance, improve cooling reliability, and extend the useful operating life of an existing cooling tower.
