Walmart offers the Bio Bidet Duo Hot/Cold Bidet Attachment, model no. BB-270, for $44.80. Opt for in-store pickup to dodge the $4.97 shipping charge. That's tied with our mention from two weeks ago and the lowest total price we've seen. (It's also the best deal now by $13.) This non-electrical bidet doesn't require any bathroom modifications and features pressure and temperature control dials, installation hardware, and self-cleaning nozzle.