Water Purification: Food-grade material and high-quality filters offer you clean and refreshing water. Keep Water Fresh: Enjoy fresh and clean water by replacing your filter every 6 months. Waterspecialist is an independent brand. This filter is not an original product. Replacement Model: Replacement for 3M Aqua-Pure 800 Series Whole House Water Filter Housings, 3M Aqua-Pure Systems AP801, AP801-1.5, AP801-1.5-C, AP801-C, AP801T, AP801T-1.5, Whole House Filter System, 3M Aqua Pure AP810/AP811, Whirlpool WHKF-GD25BB, WHKF-DWHBB, 4WH-HDGR-F01, KleenWater KW810EC. No Worry Purchase: We care about you and want you to drink clean water. If you have any issue about the product, please let us know. We have a professional customer service team and will take care of it right now. Upgraded Product: Out of the concept to reduce carbon emissions, we have upgraded the product and removed the outer packaging of the product. So the packaging you receive may be different, but please rest assured that the water filter will work more efficiently. Replacement for 3M Aqua-Pure 800 Series Whole House Water Filter Housings, 3M Aqua-Pure Systems AP801, AP801-1.5, AP801-1.5-C, AP801-C, AP801T, AP801T-1.5, Whole House Filter System, 3M Aqua Pure AP810/AP811, Whirlpool WHKF-GD25BB, WHKF-DWHBB, 4WH-HDGR-F01, KleenWater KW810EC. Waterspecialist is an independent brand. This filter is not an original product.