The Aquasana AQ4125 Replacement Cartridge is specifically designed for the AQ-4100 and AQ-4105 shower filters, providing a screw-in installation for easy replacement. Made of durable plastic, this universal connection thread cartridge is designed to be bacteria resistant and is suitable for use in the bathroom shower. The Aquasana brand ensures high quality and reliability, making this replacement cartridge a great choice for maintaining clean and refreshing water in your shower.
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