Alexapure Survival Spring Personal Water Filter (4 pack) dual relay pH controller the special washers are designed

the special washers are designed to create a tight seal on a curved surface to prevent any leaks

(1) Alexapure® gravity block filter w/ hybrid ceramic shell

on-screen temperature and tri-color display

Insert your pH electrode or tester into the sachet

Accuracy: ±0

Alexapure Survival Spring Personal Water Filter (4 pack) dual relay pH controller the special washers are designedCLEAN WATER NEVER LEAVE HOME WITHOUT IT. The Survival Spring by Alexapure is the pocket sized water filter with the power to remove up to 99% of waterborne protozoa and bacteria. Through an innovative three stage filtration process, the Survival Spring reduces sediment and microorganisms from your water with each drink. Weighs 0. 2 pounds. THE SURVIVAL SPRING IS A FAVORITE AMONG: INNOVATIVE 3 STAGE FILTRATION STAGE 1 Rugged pre filter at the base of