Narrow Range Ph Control Papers Size Ph Range 2.8 To 4.4
(Ph110) A Vial Of 100 Strips Of Activated Paper. Very Easy To Use. Just Put A Drop Of The Wine To Be Tested On One End Of The Paper Strip, Let Stand For A Minute To Dry And Then Match The Color Change Of The Paper Strip With The Color Chart Provided To Determine Your Ph Reading. Comes With Complete Directions.