An inground pool filter typically costs $300-$1,500 for the unit, or about $600-$2,500 installed when standard removal and plumbing are included. Filter type, pool capacity, labor rates, and changes to existing pipes or equipment account for most price differences.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Filter unit only | $250 | $750 | $1,800 | Price varies by filter type and capacity |
| Installed replacement | $600 | $1,400 | $2,500 | Assumes accessible equipment and standard connections |
| Cartridge filter | $250 | $650 | $1,400 | Typical residential tank, before installation |
| Sand filter | $250 | $600 | $1,200 | Tank price; sand or glass media may be extra |
| D.E. filter | $500 | $1,000 | $1,800 | Tank price; grids and plumbing affect total |
Assumptions: U.S. residential pool, standard-size replacement, ordinary access, and no major electrical or equipment-pad work.
What Inground Pool Filter Replacement Usually Costs
For a typical backyard pool, homeowners commonly pay $600-$2,500 for a complete filter replacement. A straightforward swap using the existing plumbing is often near $900-$1,500. A larger filter, premium model, difficult access, or pipe changes can push the installed total higher.
Budget about $1,400 for a midrange replacement with routine labor and no major site changes. That estimate assumes a residential pool of roughly 15,000-30,000 gallons, a standard filter tank, and a service company that removes the old unit and connects the replacement.
Equipment prices alone often fall between $250 and $1,800. Installation labor commonly adds $200-$700, while fittings, media, removal, and other small items may add $50-$350. Estimates can differ because some contractors quote the filter and labor together, while others list equipment, disposal, and repairs separately.
Pool capacity is only a starting point. The filter also needs to work with the pump’s flow rate and the plumbing. A correctly sized filter may cost more upfront than a small tank, but undersizing can increase cleaning frequency and restrict system performance.
How Tank, Media, Plumbing, and Labor Shape the Quote
A replacement quote combines the filter tank with the parts and work needed to connect it. The table shows common U.S. ranges for a standard residential job; contractor minimums and local rates can change the total.
| Quote item | Low | Typical | High | What changes the charge |
|---|---|---|---|---|
| Filter tank | $250 | $750 | $1,800 | Type, capacity, brand, and warranty |
| Media or cartridges | $40 | $150 | $450 | Sand, glass, cartridge set, or D.E. grids |
| Labor | $200 | $400 | $700 | Access, crew time, and local hourly rates |
| Fittings and plumbing | $30 | $125 | $500 | Valve, unions, pipe size, or rerouting |
| Removal and disposal | $0 | $75 | $200 | Old tank weight and disposal arrangements |
| Permit or inspection | $0 | $0 | $250 | Local rules and scope of equipment changes |
Ask whether the quote includes new media, connection fittings, removal, and startup testing. A low equipment price may not include the replacement cartridges or grids needed to make the filter operational.
Some standard swaps need only a few fittings; others require new valves, unions, or sections of PVC. A contractor may also charge a service-call or minimum labor fee, often around $100-$200, even when the hands-on replacement takes only a few hours.
Local permits are not universal for a like-for-like filter replacement. They may become relevant when the work includes broader equipment or electrical changes. The quote should identify any permit or inspection charge rather than folding it into an unexplained total.
Which Filter Type Fits a 15,000- to 30,000-Gallon Pool?
Cartridge, sand, and diatomaceous earth (D.E.) filters differ in purchase price, maintenance, and the replacement parts they require. For a common residential pool, a cartridge system often sits in the middle of the upfront price range, while D.E. equipment and replacement grids can cost more.
| Filter type | Typical unit price | Installed range | Cost detail |
|---|---|---|---|
| Sand | $250-$1,200 | $600-$1,800 | Media replacement may cost $40-$150 |
| Cartridge | $250-$1,400 | $650-$2,000 | Replacement cartridge set often costs $80-$300 |
| D.E. | $500-$1,800 | $900-$2,500 | Grid sets can cost $150-$450 or more |
Compare the expected media and replacement-part expense, not just the tank price. Sand filters use relatively inexpensive media but may require backwashing. Cartridge filters avoid backwashing but need periodic cleaning and eventual cartridge replacement. D.E. filters use grids and D.E. powder, so owners should include those supplies in the ownership budget.
Prices depend on filter surface area and rated flow, not gallons alone. Two pools with the same capacity may need different models because of pump output, plumbing configuration, or manufacturer specifications. Confirm compatibility with the pump and existing pipe size before choosing the cheapest tank.
How Pool Size and Flow Rate Push Filter Prices Up
Filter capacity and system flow are major price drivers. A modest filter for a smaller residential pool may cost $250-$700, while a higher-capacity model suited to a large pool or stronger pump can run $800-$1,800. Exact sizing depends on the filter’s rated flow, the pump, and the pool’s circulation requirements.
Moving from a 15,000-gallon pool setup to one serving 30,000 gallons or more can add roughly $200-$700 to equipment cost. This is a planning range, not a direct gallons-to-price formula: a properly sized unit must be matched to the full circulation system.
Flow rate is typically specified in gallons per minute (GPM). A system moving 60 GPM may use a different filter size from one moving 100 GPM, and a high-flow pump can make a small filter unsuitable even if the pool is not especially large. A contractor should state the model’s rated flow and explain how it matches the pump and plumbing.
Other scope changes can add cost. An equipment pad with tight spacing may require extra labor, while old or brittle PVC can justify replacing connected sections. A change from one filter type to another may require different valves or plumbing. Ask for those items to be separated so a necessary compatibility change is distinct from optional upgrades.
How Much Do Installation Hours and Plumbing Changes Add?
A straightforward replacement often takes about 2-4 labor hours. At a common service rate of $75-$150 per hour, that represents roughly $150-$600 in labor, although trip charges and minimums can raise the final bill. A second worker, difficult access, or a complicated equipment pad can extend the job.
Routine installation usually costs less than a conversion that requires pipe rerouting or several new valves. Replacing short PVC sections or unions may add $50-$250 in parts and labor. More extensive rerouting can add $250-$800 or more, depending on distance, access, and whether the existing lines can be reused.
Ask whether the labor allowance covers draining or disconnecting the system, removing the old tank, connecting the replacement, filling or loading media, and checking for leaks. D.E. filters may need additional startup steps, and some installations require a return visit if the pool needs to be rebalanced or a fitting must cure before operation.
Scheduling can affect the charge when a filter fails during peak swimming season or needs urgent service. A same-day or after-hours call may add $75-$250, but fees vary by provider. If the pool can remain safely closed, a standard appointment may avoid that premium.
Regional Labor Rates Shift Installed Filter Prices
Installed prices are often higher in large coastal metros and other high-cost markets than in smaller inland communities. As a rough comparison, labor-heavy quotes in major Northeast, West Coast, or high-demand Sun Belt cities may run 10%-25% above a national midrange estimate. Rural markets may be 5%-15% lower, though limited contractor availability can offset the difference.
Use regional percentages as a comparison aid, not a guaranteed adjustment to every quote. A $1,400 standard replacement might land around $1,540-$1,750 in a metro area with higher labor charges, while a similar straightforward job could be about $1,190-$1,330 in a lower-cost market.
Climate and season affect availability more than the filter’s basic equipment price. In warm-weather states, pool companies may face high demand through much of the year; in colder regions, spring openings can create a short busy period. A contractor may quote a longer wait or a premium for urgent work during those periods.
Compare at least two itemized estimates from companies that serve the same area. Check whether each uses the same filter type and capacity, includes media and disposal, and prices labor on the same basis. A cheaper quote using a smaller model is not a fair comparison until its rating and pump compatibility are verified.
Repairing a Filter Versus Replacing the Tank
Not every leak or drop in performance requires a new filter. A replacement pressure gauge may cost $15-$50, an air-relief assembly around $20-$80, and a damaged valve or clamp repair commonly $50-$250 installed. A cartridge or sand-media change can also restore operation when the tank itself is sound.
Repair is often the lower-cost choice when the tank is intact and the problem is a replaceable part. A cracked tank, repeated leaks, badly corroded hardware, or a failed multiport valve on an older system can make replacement more practical. A tank repair that approaches $400-$700 deserves comparison with the cost of a complete new unit.
Replacement is not automatically cheaper over time, and age alone does not prove a filter has failed. Ask the technician to identify the failed component and provide separate repair and replacement totals. The estimate should include the cost of any grids, cartridges, or media that would still be needed after the repair.
Warranty coverage can change the net price. A tank may carry a manufacturer warranty, but labor, shipping, or damage from improper installation may not be covered. Confirm the warranty term and exclusions in writing, especially if a replacement model costs substantially more than a basic unit.
Where Pool Owners Can Trim the Replacement Bill
Keep the existing filter type and plumbing layout when they remain compatible with the pump. A like-for-like replacement can avoid conversion fittings and extra labor. Before approving a larger model, ask the installer to show why the current capacity is inadequate and whether the pump’s flow rate supports the upgrade.
Controlling the scope is usually more reliable than choosing the cheapest filter available. Request separate prices for the tank, media, labor, fittings, disposal, and optional upgrades. This makes it easier to remove nonessential work without overlooking parts required for a safe, working installation.
Owners can reduce labor time by clearing access to the equipment pad, moving stored items, and identifying the pump model and existing filter size before the appointment. They should not cut, disconnect, or modify pressurized pool plumbing themselves; incorrect work can cause leaks or equipment damage.
Compare two or three written quotes for the same filter model or equivalent capacity. Check the included media, warranty, cleanup, startup test, and travel or service fees. Bundling a filter replacement with already-needed pump or valve work may reduce repeat trip charges, but only when the additional work is genuinely required.
Replacement media can be a useful point of comparison, but it should match the manufacturer’s specifications. A lower-priced tank that needs costly proprietary cartridges or grids may not be the lowest-cost choice over its service life. Keep the old filter’s model information and request the expected replacement-part prices before deciding.