COSLUS 300ml Portable Cordless Water Dental Oral Irrigator Flosser $7.25 + Free Shipping Bichenis via Amazon has *COSLUS 300ML Portable Rechargeable Water Flosser* for $39.85 – 47% w/ ‘clipped’ coupon on product page – 28% w/ code *IS3KP6QK = $9.80. Shipping is free* w/…