#20 Grit Pool Filter Sand 50 lb

Filter Sand; Brown; #20 Silica; 50 Lb. Bag  AAA-200

#20 Grade Silica Pool Filter Sand is the standard, reliable solution for maintaining crystal-clear water in both above-ground and in-ground sand filter systems. This 50 lb bag of high-purity, natural sand is specifically graded to capture particles as small as 20 to 40 microns, including dirt, algae, sunscreen oils, and insects, without the use of harsh chemicals.

Key Performance Benefits

• Superior Filtration: Its angular grain shape interlocks to create a dense filtration bed, effectively trapping fine debris and contaminants that cause cloudy water.
• Clog Resistance: Pre-washed and meticulously screened to ensure a uniform flow rate, preventing the sand from balling, packing, or "channeling" inside your filter tank.
• Chemically Inert: 100% natural and free of additives, it will not react with your pool’s sanitizers or impact its delicate pH balance.
• Low Maintenance: Designed for easy backwashing, it releases trapped waste quickly and evenly to restore filter efficiency.

Product Specifications

• Grade: Standard #20 Silica Sand (0.45mm – 0.55mm).
• Weight: 50 lb (22.7 kg) heavy-duty, moisture-resistant bag.
• Coverage: Typically fills a standard residential filter tank to about 2/3 or 3/4 capacity, as recommended by manufacturers.
• Lifespan: For seasonal pools, it typically lasts 3 to 5 years before the grain edges wear smooth and require replacement.

Pro Tip

When replacing your sand, always fill the filter tank halfway with water before pouring in the new sand. This cushions the internal "laterals" (plastic finger-like tubes at the bottom) and prevents them from cracking under the weight of 50 lbs of falling sand.