Pool Filters | Cartridge, Sand & DE Systems

Pool filters remove dirt, debris, and fine particles from circulating pool water to maintain clarity and sanitation. This collection includes cartridge, sand, and DE filtration systems designed for reliable pool filtration. Browse our pool filters to keep your water clean and properly filtered.

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4 products

AquaStar PLF27000 Pipeline Cartridge Filter System with gauge and OEM pool filter parts
$1,149.95 $1,218.24
AquaStar PLF27000 Pipeline Cartridge Filter System
Sold Out -6%
AquaStar PLF35000 Pipeline Cartridge Filter System genuine OEM pool equipment part
$1,249.95 $1,318.24
AquaStar PLF35000 Pipeline Cartridge Filter System
Sold Out -5%

The Heart of Your Pool’s Circulation System

A crystal-clear pool starts with the right filter. Pool filters remove dirt, debris, and microscopic particles, ensuring your water stays clean, safe, and inviting. Without a reliable filter, sanitizers like chlorine can’t work effectively, leaving swimmers exposed to cloudy water and potential contaminants.

At Benchmark Pool Supply, we carry a full selection of pool filters — including cartridge, sand, and diatomaceous earth (DE) systems — from trusted brands like Pentair®, Hayward®, Jandy®, and Sta-Rite®. Whether you’re looking to replace an aging filter, upgrade to a more efficient system, or simply keep your current one running at its best, we have the solution.

Why Pool Filters Are Essential

  • Cleaner Water – Removes debris, oils, and tiny particles.

  • Improved Sanitation – Supports chlorine and other sanitizers.

  • Safer Swimming – Keeps water free from harmful contaminants.

  • Longer Equipment Life – Reduces strain on pumps and heaters.

  • Consistent Clarity – Maintains sparkling water with minimal effort.

Types of Pool Filters

1. Cartridge Filters

  • Use pleated cartridges to trap dirt and debris.

  • Easy to maintain — simply rinse with a hose.

  • Energy-efficient, requiring lower pressure to operate.

  • Great for small to medium-sized pools.

2. Sand Filters

  • Water passes through a bed of sand that traps debris.

  • Simple to use with backwashing functionality.

  • Long-lasting media that only needs replacing every 5–7 years.

  • Ideal for large pools and heavy debris loads.

3. DE (Diatomaceous Earth) Filters

  • Provide the finest level of filtration, down to 2–5 microns.

  • Use powder-coated grids for superior water clarity.

  • Preferred for commercial pools and those needing pristine water.

  • Require backwashing and periodic DE powder replacement.

Choosing the Right Pool Filter

  • For Easy Maintenance → Cartridge filters are simple and efficient.

  • For Large Pools → Sand filters offer reliability and low upkeep.

  • For the Clearest Water → DE filters deliver unmatched filtration.

  • For Energy Efficiency → Cartridge and modern high-capacity sand filters excel.

Benefits of Upgrading Your Pool Filter

  • Lower Energy Bills – Newer filters operate more efficiently.

  • Less Maintenance – Larger capacity means fewer cleanings.

  • Cleaner, Safer Water – Advanced filtration improves clarity.

  • Long-Term Savings – Durable parts reduce repair and replacement costs.

Signs You Need a New Filter

  • Cloudy water that doesn’t clear after shocking.

  • Excessive backwashing or cleaning needed.

  • Cracked or leaking filter tanks.

  • Rising pressure that won’t reset after maintenance.

  • Old age — most filters last 7–10 years with proper care.

Maintenance Tips for Pool Filters

  • Cartridge Filters – Rinse monthly and deep-clean seasonally. Replace cartridges every 1–2 years.

  • Sand Filters – Backwash as needed and change sand every 5–7 years.

  • DE Filters – Backwash per manufacturer’s instructions, recharge with DE powder, and replace grids every 3–5 years.

  • Always monitor pressure gauges and maintain seals and O-rings.

Why Buy Pool Filters from Benchmark Pool Supply?

  • Top Brands – Pentair®, Hayward®, Jandy®, and more.

  • Full Selection – Cartridge, sand, and DE options for every pool.

  • Expert Support – Our team helps match the right filter to your pool size and system.

  • Affordable Pricing – Competitive rates without sacrificing quality.

  • Fast Shipping Nationwide – Get your filter when you need it.

✅ FAQ – Pool Filters

Q: Which type of pool filter is best?
A: It depends on your needs. Cartridge filters are easy to maintain, sand filters are reliable for large pools, and DE filters deliver the clearest water.

Q: How often should I clean my pool filter?
A: Cartridges should be rinsed monthly, sand filters backwashed as needed, and DE filters cleaned and recharged after each backwash.

Q: Can I switch from a sand filter to a cartridge or DE filter?
A: Yes, with proper plumbing adjustments, you can upgrade your system.

Q: How do I know when to replace my filter?
A: If maintenance doesn’t restore performance, or if the tank is cracked, it’s time to replace.

Q: Are replacement parts available for pool filters?
A: Yes, we stock cartridges, DE grids, laterals, valves, O-rings, and more.

Q: Do new filters save money on energy?
A: Yes, modern filters require lower operating pressures, reducing strain on pumps and saving energy.