Filtrete standard Capacity Whole House System Refill 2-pack Carbon Wrap. Filtrete Standard Capacity Whole House System Filters filter water throughout your home protecting your plumbing and appliances from Chlorine Taste and Odor Sand Sediment Silt and Rust with 5 micron filter rating. Great for 2 or less bathroom households. For use in 3WH-STD-S01 or similar standard drop-in style housing using 2.5 diameter x 10 length replacement filter. Universal filter replacements are available in pleated string wound carbon wrap and grooved filters. Filter life replacements available in 3 and 6 month versions.