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Crystal Quest CQE-PT-03082 O-Rings 2.5x10 Housing by Crystal Quest. $4.95. O-Rings for Counter Top or Under Sink 10x2.5 inch water filter housings, set of 3. ACTUAL Diameter: 3.5" (90 mm). Available in clear or black, for different systems, please choose identical to the one you already have. The most common o rings (o-rings) used in water filtration are made from Buna N material. Buna N is also commonly referred to as nitrile. This is the ideal choice for cold wa...

Green Filter for Frigidaire NGRG-2000 NSF Certified Refrigerator Water Filter... by GreenFilter. $7.54. Help save the environment with this eco-friendly "green" filter that is an original equipment replacement. Compared to conventional carbon-based filters, Swift Green filters are environmentally friendly. Conventional carbon filters are produced by a burning process called open pit charring which release pollution and greenhouse emissions into the air. Swift Green filter compon...