Quad-Action Square Fountain Replacement Filters

Ensure your pet always has access to pure, high-quality hydration with these Quad-Action Square Fountain Filters. Specifically designed for 2.5L square automatic dispensers, these filters utilize a comprehensive four-stage purification process. By removing physical debris and molecular contaminants, they protect your pet's long-term health, helping to prevent the buildup of toxins and minerals that can lead to urinary tract issues.Each filter features a precision-engineered core containing a potent blend of activated carbon and ion-exchange resin. This combination works to soften hard tap water while eliminating chlorine and organic odors. The dual-layer non-woven fabric acts as a high-density mechanical barrier, trapping hair, dander, and sediment to ensure the water remains crisp and the fountain's pump stays protected from clogs.Key Specifications4-Stage Purification Logic: Combines high-density cotton layers, premium activated carbon, and ion-exchange resin for total water clarity.Ion-Exchange Softening: Effectively removes calcium and magnesium ions to soften water, supporting healthy kidney and bladder function.Activated Carbon Filtration: Absorbs chemical impurities, heavy metals, and unpleasant odors for a "fresh spring" taste.Mechanical Debris Barrier: High-density non-woven fabric captures fur, dust, and food particles before they circulate.Square Precision Fit: Engineered with a central 1.37-inch cutout to ensure a perfect seal in compatible 2.5L fountain models.Individually Sealed: Each filter is hygienically wrapped to ensure freshness and prevent contamination before installation.Pet-Safe Construction: Made from non-toxic, food-grade materials that won't leach chemicals into the water supply.📏 Size GuideFeatureImperialMetricFilter Width/Height4.8 in12.20 cmCenter Hole Diameter1.37 in3.48 cmCompatible Capacity2.5 L~84.50 fl ozMaterialCarbon + Resin + CottonCarbon + Resin + CottonReplacement Cycle2–4 Weeks2–4 Weeks