SharkNinja runs a $6.4B business on one repeatable move. Find a category where the leader stopped engineering decades ago, then attack it with real R&D at a normal price. Water filters might be the softest target they've ever picked. A standard Brita is a gravity filter. Water drips through loose carbon at whatever speed gravity allows, which handles chlorine taste and not much else. The standard filter isn't even certified to remove lead or PFAS. Catching those requires much finer filtration…