13,500 Gallons Water Filter for Hard Water, NSF Certified KDF $3.39 + free shipping

Amazon has CasaFlow 13,500 Gallons Shower Water Filter For Hard Water for $33.86 – 90% w/ coupon code CASAFLOW9 (apply at checkout) = $3.39. Shipping is free
Description:
- Has a 99% dechlorinate rate
- Contains KDF55 and Calcium Sulfite, which are more effective than activated carbon for reducing chlorine, heavy metals, bacteria and pesticides and inhibiting the growth of scale, algae, fungi and mold.