For most residential sand filters, a 20‑grade silica pool filter sand is the standard choice. It’s engineered for pool filtration and is widely compatible with common sand filter systems.

• Standard option: 20‑grade silica pool filter sand designed specifically for sand filters.
• Alternatives on this page: Zeolite media and lightweight fiber filter balls that are marketed as replacements for traditional sand.
• Bag sizes: You’ll see 20 lb and 50 lb bags, which can help match your filter’s capacity.

If you’re unsure, check your filter’s manual for the recommended media type and amount. Choosing a media designed for sand filters can help maintain proper water flow and filtration, but results can vary depending on the filter model and pool conditions.

Pool filter sand is produced and graded specifically for sand filter systems, while play or paver sand is meant for sandboxes or landscaping.

• Pool filter sand: Labeled for pool filters, commonly a 20‑grade silica that supports consistent flow and backwashing in filter tanks.
• Play/paver/aquatic sands: Intended for other uses and not formulated for pool filtration performance.

Using sand not intended for filters can affect water circulation and may reduce filtration efficiency. For best results, look for bags labeled “pool filter sand” or media marketed for sand filters. Always compare with your filter’s manual to confirm the correct media type and amount for your specific system.

You can shop pool filter sand right on Walmart.com. This page features multiple options, including 20 lb and 50 lb silica pool filter sand as well as alternative filter media like zeolite and fiber filter balls.

• Search: Look for terms like “pool filter sand” or “sand filter media.”
• Compare: Check bag sizes and product descriptions to match your filter’s requirements.
• Availability: Online shipping options are typically available; store availability can vary by location, so you can check local inventory by entering your ZIP code on the product page.

If you’re unsure what to choose, review your filter’s manual to confirm the recommended media type and capacity before adding to cart.

The number of bags depends on your filter’s sand capacity and the bag size you choose.

1. Find capacity: Check your filter’s manual or label for the required pounds of media.
2. Match bag size: Pool filter sand is commonly sold in 20 lb and 50 lb bags.
3. Do the math: Divide your filter’s required pounds by the bag weight. For example, a 100 lb capacity would be two 50 lb bags or five 20 lb bags.

Some alternative media list a “sand equivalent” (e.g., a certain weight replaces a stated amount of sand). Use that guidance to estimate how much to buy. Avoid overfilling or underfilling, and follow your filter manufacturer’s recommendations.

They’re both popular alternatives to traditional silica pool filter sand, and each offers different handling and maintenance considerations.

• Material/weight: Fiber filter balls are lightweight and reusable; zeolite is a mineral media sold for sand filter systems.
• Fill amount: Many alternatives provide a “sand equivalent.” Use that guidance instead of 1:1 weight when filling.
• Maintenance: Backwashing and cleaning steps can differ slightly from sand. Follow the media’s instructions and your filter manual.
• Compatibility: Most sand filters accept alternative media, but it’s best to confirm your filter’s recommendations before switching.

Choosing among sand, zeolite, or filter balls can depend on your preferences for handling, maintenance, and what your specific filter supports.