eFaucets offers the Kohler Puretide Manual Cleansing Round Bidet Toilet Seat, model no. K-76923-0, for $121.35 with free shipping. That's tied with last week's mention and the lowest total price we could find by $16. It features a self-cleaning wand that automatically rinses after each use, adjustable spray position and pressure, and quiet-close lid.
Note that it's not expected to ship for two to three weeks.