About This

• 【Protects Hot Water Heaters】: Polyphosphates in AP431 scale inhibitor cartridge help to extend the life of hot water heaters and keep your water-using appliances, like pipes, heaters, dishwashers, washing machine etc.
• 【Food Grade & BPA-Free】: The AP431 cartridge housing is made from food grade BPA-free plastic, the scale inhibitor cartridge ensures a safe water use experience.
• 【Steady Flow Rate】: Whole house scale inhibitor filter with a steady flow of up to 10 gpm ensures water at a stable pressure and water throughout the house.
• 【Easy to Replace】: 3/4" inlet precise design ensures AP431 replacement cartridge fits the original brand perfectly, without any leaks. Easy to change makes system maintenance. Replace the corrosion inhibitor filter every 6 months to achieve effective scale inhibition effect, the specific time depends on the water condition.
• 【Compatible Models】: Waterdrop AP431 filter replacement for 3M Aqua-Pure whole house scale inhibition inline water system AP430SS, AP430, HF8-S, KleenWater KW431, SF18-S scale inhibition system.

Overview

• Material : polyphosphates
• Product Dimensions : 2.55"D x 2.55"W x 9.46"H
• External Testing Certification : RoHS
• Product Benefits : Prevent Scale Build Up On Hot Water Heaters
• Brand : Waterdrop