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Tier1 Plus refrigerator filters are a trusted alternative to OEM options
Proudly made in the USA to fit with any brand of undersink water filtration system that uses 9 3/4 x 2 1/2 inch filter cartridges
Tier1's proprietary carbon blend delivers clean
A genuine OE part
If you are looking for the best refrigerator water filter replacement that balances performance and affordability
Doulton W9331215 Countertop Water Filter System with Biotect Ultra® Tier1 Plus Tier1 Plus refrigerator filters areThe Doulton W9331215 countertop system with Biotect Ultra is a reliable, high quality water filtration solution built for durability. It features a stainless steel housing with a chromium plated brass base, ensuring your ceramic filter stays well protected. Equipped with a long lasting, cleanable ceramic Biotect Ultra filter element. The system can provide a steady supply of fresh, great tasting water straight from your tap. The unit connects easily
