Spotted this one on Slickdeals a few days back for $10, and it’s now even cheaper with a new promo code 6H4PIOP6
Has a 300ml tank, multiple pressure modes, and rechargeable battery. A few users on SD mentioned it’s solid for the price — one even said a dentist took part in its testing.
Not flashlight-related, but figured it might be useful for anyone here who likes practical gear deals.
https://www.amazon.com/Water-Dental-Flosser-Teeth-Pick/dp/B0BG52SJ5N?th=1