APEC Replacement O-Rings for ROES-50 3.5 OD Reverse Osmosis Water Filter Housings

The O-RING-SET comprises 3 pieces of 3.5-inch standard industry-size O-RINGS that are utilized to prevent leaks when customers need to change the 3 pre-filters of a 10-inch standard under-sink reverse osmosis system. It is recommended to replace all O-RINGS once the housing is opened. The O-RINGS should be lubricated with clean lubricant and placed in the grooves below the thread to prevent water leaks.

APEC Water Systems does not distribute or sell its products to any third-party sellers on Amazon. Customers are advised to purchase genuine APEC Water system products in "new" condition from Amazon.com or directly from APEC Water to ensure authenticity. The manufacturer's warranty may not apply in all cases, depending on factors such as the use of the product, where it was purchased, or from whom it was purchased. Customers are encouraged to review the warranty carefully and contact APEC Water if they have any questions.

IMPORTANT: A set of 3 o-rings for standard filter housings of APEC ESSENCE reverse osmosis systems purchased BEFORE JUNE, 2013 and ULTIMATE reverse osmosis systems purchased before MAY, 2015 are 3.5 inches in outer diameter. These o-rings are lightweight and easy to install and unload, and they are manufactured using NSF-compliant materials.

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