VFVerifiedFilters
Cost Analysis

Filter Total Cost of Ownership

Why the cheapest filter often costs the most—and how to calculate what filtration really costs your operation.

Real Stories of "Cheap" Filters

Hydraulic System:

Switched to cheaper filters to save $30/unit. Six months later, servo valve failed from contamination. Cost: $8,000 valve + $12,000 labor + $30,000 lost production. The "savings" on 20 filters ($600) caused a $50,000+ loss.

Compressed Air System:

Budget coalescing filters let oil carryover reach paint booth. Entire production run rejected—$15,000 in scrap plus customer delay penalties.

HVAC System:

Low-cost MERV 8 filters clogged in 3 weeks instead of 3 months. Labor for 4x more changeouts plus increased energy from restricted airflow exceeded "savings" by 300%.

This happens every day in plants that buy filters on price alone.

What Is Filter TCO?

Total Cost of Ownership goes beyond the purchase price to include every cost associated with a filter over its lifetime. The filter itself is often the smallest part of the equation.

The TCO Equation

TCO = Purchase + Labor + Downtime + Disposal + Component Wear + Inventory

The 6 Components of Filter TCO

1. Purchase Cost

The sticker price. What most people focus on—but it's typically only 5-15% of total cost.

Annual filter purchases ÷ Annual operating hours = Cost per hour (purchase only)

2. Labor Cost

Someone has to change the filter. Include travel time to the machine, the actual change, cleanup, and documentation.

Typical filter change: 15-45 minutes
Loaded labor rate: $50-100/hour
Cost per change: $12-75

A filter that costs $20 more but lasts twice as long saves labor on every avoided change.

3. Downtime Cost

If the machine must stop for filter changes, that's lost production. This is often the largest cost component.

Example: CNC machine produces $500/hour in parts
30-minute filter change = $250 lost production
A $100 filter lasting 2000 hours vs. $60 filter lasting 1000 hours:
Cheap filter: 4 extra changes/year × $250 = $1,000 extra downtime

4. Disposal Cost

Used filters with oil are hazardous waste in many jurisdictions. Disposal isn't free.

Typical costs:
Oily filters: $0.50-2.00 per filter
Coolant filters: $1-5 per filter
Hazmat disposal: Can be much higher

5. Component Wear (The Hidden Killer)

Poor filtration accelerates wear on pumps, valves, cylinders, and bearings. This cost is invisible until something fails—then it's catastrophic.

Studies show:
Improving ISO cleanliness by one code level can double component life.
Going from 18/16/13 to 16/14/11 could extend a $5,000 pump's life from 5 years to 10 years.

Component replacement cost ÷ Life extension = Annual savings from better filtration

6. Inventory Carrying Cost

Filters on the shelf tie up capital, require storage space, and can degrade over time.

Rule of thumb: Carrying cost = 15-25% of inventory value per year
$10,000 in filter inventory = $1,500-2,500/year in carrying costs

TCO Comparison Examples

Example 1: Hydraulic Return Line Filter

Machine running 4,000 hours/year:

Cost FactorBudget FilterPremium Filter
Purchase price$45$85
Average life800 hours2,000 hours
Changes per year52
Annual filter cost$225$170
Labor per change ($60/hr × 0.5 hr)$150$60
Downtime per change ($200/hr × 0.5 hr)$500$200
Disposal ($1.50/filter)$7.50$3
Component wear impact*$400$100
Annual TCO$1,282.50$533.00

Example 2: HVAC Panel Filters (20-Unit System)

Commercial building with 20 filter positions, changed quarterly:

Cost FactorMERV 8 BasicMERV 11 Premium
Price per filter$8$18
Filter life6 weeks12 weeks
Changes per year (20 units)8 × 20 = 1604 × 20 = 80
Annual filter cost$1,280$1,440
Labor (8 vs 4 changeouts @ $150)$1,200$600
Energy (higher ΔP from clogging)$2,400$1,800
Coil cleaning (dirty filters = dirty coils)$800$0
Annual TCO$5,680$3,840

Example 3: Compressed Air Coalescing Filter

100 CFM system running 2,000 hours/year:

Cost FactorGeneric ElementOEM-Spec Element
Element price$35$95
Element life1,000 hours2,000 hours
Changes per year21
Annual element cost$70$95
Pressure drop (energy @ $0.10/kWh)$340$180
Oil carryover risk (product contamination)HighLow
Annual TCO (excluding contamination events)$410+$275

*Component wear estimated based on cleanliness improvement and typical equipment life extension

The Pattern

Across hydraulic, HVAC, and compressed air systems, the same truth holds: filters that cost more per unit almost always cost less per year when you account for labor, energy, downtime, and downstream effects.

How to Calculate Your TCO

1

Gather your data

Filter prices, change frequency, labor rates, downtime costs, disposal fees. If you don't have exact numbers, estimate conservatively.

2

Calculate per-change costs

Labor + downtime + disposal = cost every time you change a filter (not including the filter itself).

3

Multiply by change frequency

A filter with longer life = fewer change events = lower per-change costs over the year.

4

Factor in filtration quality

Better filtration = cleaner fluid = longer component life. Even a conservative estimate can swing the TCO calculation dramatically.

5

Compare options

Run the same calculation for different filter brands/types. The winner is rarely the cheapest sticker price.

Quick TCO Wins

Extend filter life with breathers

Desiccant breathers prevent ingression, so system filters last longer. A $50 breather can double filter life.

Add offline filtration

A kidney loop polishes oil continuously, taking load off system filters and dramatically extending their life.

Filter new oil

New oil from the drum is NOT clean. Pre-filtering before adding to the system reduces load on system filters.

Right-size your filters

Undersized filters plug fast. Sometimes moving up one size doubles life for minimal cost increase.

Related Resources

Understanding these topics will help you optimize your filtration TCO:

Want help analyzing your filter TCO?

We can review your current filters and show where you're leaving money on the table.