Premium Pool Filter Solutions

NW Pool Supply - your trusted destination for premium pool filter systems designed to keep your pool water sparkling clean, safe, and ready for endless enjoyment. Whether you’re maintaining a small backyard pool or managing a large in-ground system, we offer top-of-the-line filtration options from leading brands like Waterway and Hayward. 

Why a High-Quality Pool Filter Matters 

A pool filter is the heart of your pool’s circulation system. It removes dirt, debris, oils, and even microscopic particles that can make the water cloudy or unsafe. When paired with the right pool pump and filter system, it helps: 

  • Maintain clear and hygienic water 
  • Prevent algae buildup and bacterial growth 
  • Reduce the need for excessive chemicals 
  • Prolong the lifespan of pool equipment 

Whether you prefer a pool cartridge filter, a sand filter, or a D.E. filter, the right filtration system ensures your pool stays inviting and healthy for swimmers. 

Shop by Filter Type 

Explore our collection to find the perfect pump and filter for swimming pool systems. Each product is built for maximum water clarity, energy efficiency, and long-lasting performance. 

Cartridge Pool Filters 

Cartridge filters are a popular choice for pool owners who want powerful filtration with minimal maintenance. Simply rinse and reinstall, no backwashing required. 

  • Captures fine particles for superior clarity Easy to clean and maintain Energy-efficient operation Ideal for residential pools 

Top Cartridge Filter Picks: 

Sand Pool Filters 

Sand filters are a simple, budget-friendly solution for clear pool water. Perfect for medium and large pools, they’re easy to operate and clean. 

  • Durable and cost-effective 
  • Straightforward backwashing system 
  • Long-lasting filter media 
  • Ideal for both inground and above-ground pools 

Top Sand Filter Picks: 

D.E. (Diatomaceous Earth) Pool Filters 

D.E. filters offer the finest filtration available, removing particles as small as 2–5 microns for unmatched water clarity. 

  • Highest level of filtration 
  • Ideal for high-traffic pools 
  • Crystal-clear water with minimal chemicals 

Top D.E. Filter Picks: 

Keep checking the space for more products to update in our collection. 

Professional Tips for Extending Your Filter’s Life 

A pool filter works hard to keep your water clean. Follow these tips to get the best performance: 

  • Regular Cleaning: Rinse cartridges or backwash sand filters regularly. 
  • Monitor Pressure Gauges: High pressure means it’s time for maintenance. 
  • Replace Media on Schedule: Timely pool filter replacement ensures peak efficiency. 
  • Pair with the Right Pump: A balanced pool pump and filter system prevents strain and maximizes flow. 

Simple care routines keep your system efficient and your pool water sparkling. 

Upgrade Your Pump and Filter For Swimming Pool 

A modern pool pump and filter combo can reduce energy costs, increase water clarity, and simplify maintenance. Shop the right pool filter with a high-efficiency pump that creates a powerful circulation system that keeps your pool clean all season long. 

Frequently Asked Questions

How often should I replace my pool filter?

Most pool cartridge filters should be replaced every 1–2 years, sand every 3–5 years, and D.E. grids as per manufacturer recommendations.

What’s the best filter for a large pool?

For large pools, a D.E. pool filter provides the best filtration, while cartridge filters are excellent for medium-sized pools.

How do I know when to replace my pool filter?

Watch for cloudy water, reduced flow, or rising pressure gauge readings. These are clear signs it’s time for pool filter replacement.

Do I need a new pump with my filter?

Pairing a new pool pump and filter can optimize efficiency, but if your current pump works well, you may only need to replace the filter.

Can I install a pool filter myself?

Many pool filter models are designed for easy DIY installation, especially cartridge and sand filters. For complex plumbing or D.E. systems, professional installation is recommended to ensure proper setup and warranty coverage.

Do I need to replace the pump along with the filter?

Not always. If your existing pump is in good condition and compatible with the new pool filter, you can replace the filter only. However, upgrading both can improve circulation and efficiency.

How do I clean my pool cartridge filter?

Turn off your pump, remove the cartridge, and rinse it thoroughly with a garden hose to remove debris. For deep cleaning, soak it in a cartridge cleaning solution. Allow it to dry completely before reinstalling.

What signs indicate that I need a pool filter replacement?

  • Cloudy or dirty pool water
  • Low water flow or circulation
  • Rising pressure readings
  • Cracked filter housing or damaged cartridges

When these signs appear, it’s time for pool filter replacement.