This water filtration system features a 5-stage filtration system with a 0.1-micron ultrafiltration membrane. It provides up to 1,400 gallons of safe drinking water with a flow rate of 700 ml/min. The filter straw is recyclable and includes a backwash purifier function for easy maintenance. Price drops from $42.99 to $29.99 to just $22.39 when you join Prime and add the code "STWRD7ZF" during checkout. Shipping is free.

This deal is exclusively for Amazon Prime members.