Water Sentinel (WSP-2) WaterQuik Pet Fountain Replacement FilterThe Water Sentinel WSP 2 WaterQuik Pet Fountain Replacement Filter delivers clean, chlorine free water for up to six months or 300 gallons. An economical alternative to OEM filters that reduces tastes, odors, and chlorine while preserving beneficial minerals your pets need. SPECIFICATIONS Filter Performance & Capacity Model Number WSP 2 Manufacturer TST Water Filter Capacity 300 gallons or 6 months Primary Filtration Activated carbon Contaminants