Refrigerator water filters are one of those consumables most people think about only when the flow slows to a trickle or the ice cubes start tasting like the inside of the freezer. The Waterdrop 4396508 is a third-party replacement for the EveryDrop EDR5RXD1 (also sold as filter 5-2), a cartridge used in a range of Whirlpool, KitchenAid, Maytag, and Jenn-Air side-by-side refrigerators. It is sold here as a three-pack, which is the format most households actually want, since these filters are typically rated for about six months of use and replacing them one at a time gets expensive fast.
The case for a compatible filter is mostly economic. Genuine EveryDrop cartridges are priced as premium consumables, and a three-pack of Waterdrop units often costs less than a single OEM filter. Whether that trade-off makes sense depends on how much you value certified performance and brand-matched fit over savings, and it is worth understanding what you are and are not getting before ordering.
What it actually is
The cartridge is a drop-in replacement, not an adapter or a workaround. It slots into the same housing as the EDR5RXD1 and twists into place the way the original does. Waterdrop rates it for the standard set of contaminants associated with this filter class, including chlorine taste and odor, sediment, and several volatile organic compounds. The company states the filter is tested to NSF/ANSI standards 42 and 372, which cover aesthetic effects (taste, odor, chlorine reduction) and lead-free materials respectively. That is a meaningful distinction: NSF 42 certification is not the same as NSF 53, which covers health-related contaminants like lead and cysts. If your reason for filtering is primarily taste and odor, this is adequate. If you are filtering for a known health concern, check the certification on the specific listing carefully, because compatible filters vary in what they are actually certified for.
In daily use
Installation is straightforward and takes a few minutes: remove the old cartridge, line up the new one, and twist until it seats. There is no separate housing to open and no tools required. In practice, the most common complaint with third-party cartridges is a slightly looser fit than the OEM part, which can occasionally lead to a small drip at the seal if the cartridge is not seated firmly. Waterdrop’s units generally seat correctly, but it is worth checking for leaks for the first day or two after installation rather than assuming everything is fine.
Flow rate is the other practical variable. Compatible filters sometimes restrict water flow more than the original, particularly as they approach the end of their service life. Expect the dispenser to feel roughly comparable to the OEM filter when new, with a gradual decline over several months. The six-month replacement interval is a guideline; households with heavy water and ice use, or with noticeably hard or sediment-heavy water, may find the flow drops off sooner. The three-pack format helps here, since a spare is always on hand.
Where it falls short
The honest limitation is certification scope and consistency. EveryDrop cartridges carry the full certification profile the refrigerator manufacturer specifies, and the brand is the one the appliance was designed around. Waterdrop’s filter covers the core aesthetic claims, but buyers who want the exact certification footprint of the OEM part, or who have had a bad experience with a compatible filter in the past, may prefer to pay more for the original. There is also the question of counterfeits and inconsistent stock in the compatible-filter market generally, so buying from a reputable seller matters more than it does with OEM parts.
Compared with the OEM EveryDrop EDR5RXD1, the Waterdrop is a value play: similar fit and function, lower cost per cartridge, slightly less certification breadth. Compared with generic no-name cartridges, it sits a step up, since Waterdrop publishes its testing claims and has a recognizable support presence. It is not the cheapest option on the shelf, and it is not positioned as a premium one either.
Who it suits
This three-pack makes sense for households with one of the compatible Whirlpool-family refrigerators who replace filters on schedule and mainly care about removing chlorine taste and odor from drinking water and ice. It is a reasonable choice for renters or for a second home where the refrigerator is not heavily used. It is less suitable for anyone filtering water with a known health concern who needs NSF 53-level certification, for owners of refrigerators outside the listed compatibility range, or for people who have had seal or fit issues with compatible cartridges before and would rather not risk a repeat. For everyone else, it is a workable, cost-conscious consumable that does the basic job without much drama.