Compatible Models: Everydrop Filter 4, Whirlpool Water Filter EDR4RXD1, Maytag UKF8001, Whirlpool 4396395, Kenmore 469006, UKF8001AXX, UKF8001AXX-200, UKF8001AXX-750, UKF8001-750, UKF8001AXXP, UKF8001P, UKF8001T Authoritative Certification - This W004 replacement filter cartridge (suitable for EDR4RX1 models) utilizes premium coconut shell activated carbon blocks manufactured in Sri Lanka, ensuring effective removal of various impurities. This replacement cartridge has also earned NSF 42 certification from the industry-leading regulatory body: NSF International Certification Number C0791840. KINDLY REMINDER: Please drain about 4 gallons to maximize the efficiency. Please replace the every 6 months or 300 gallons to minimize impurities Perfect fit: You can now worry less about water leakages due to unfit or loose replacement filters. This replacement for Everydrop Filter 4 uses precision production techniques to produce filter elements to the original brand parameters. Follow the instructions and install in minutes with no extra tools required 60-Day - Our hassle-free service guarantees a refund or replacement, no need to return the filter! If you have any questions, let us know, and we will help you solve the problem Is committed to becoming a seller who has better service and quality. Ware notes The longest period of use is 6 months or 300 gallons. If there are any problems when you use the products, please contact us immediately and we will provide you the best solution. COMPATIBLE MODELS: Everydrop Filter 4, Whirlpool Water Filter EDR4RXD1, Maytag UKF8001, Whirlpool 4396395, Kenmore 469006 UKF8001AXX, UKF8001AXX-200, UKF8001AXX-750, UKF8001-750, UKF8001AXXP, UKF8001P, UKF8001T Operating Parameters Flow Rate: 0.66 GPM Capacity: 6 months / 300 gallons PRESSURE:30-125PSI (207-852kPa) Temperature: 1-38℃ (34-100°F) For NSF 42: Certificate C0791840, by NSF International, 2023.