Member's Mark Alkalinity Booster (25 lbs.) 

by Member's Mark | Item  #: 655421 | Model #:  12001803 |
Member's Mark Alkalinity Booster (25 lbs.)
Non-member price: $0.00  Join now!
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About this item

Member's Mark® Alkalinity Booster is for all pools & spas.


Use Member's Mark® Alkalinity Booster for effective water balance control.


  • Member's Mark® Quick Dissolving Shock Stabilizer
  • 25 lb. pail
  • Raises alkalinity
  • This is step 1: balance
  • Pail Dimensions: 12.279"H x 13.167"W x 13.167"D
100% Money Back Guarantee: We would like to hear from you with any comments or suggestions. In the continental U.S. or Canada, you can call us toll-free at 1.888.301.0332 from 8 a.m. to 5 p.m. CST Monday-Friday. You can also send us an email using the feedback icon at

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Shipping Information

Standard - 2 to 6 business days

Premium - 2 to 4 business days

Express - 1 to 2 business days

Warranty Information

This product is covered by the Sam's Club Member Satisfaction Guarantee.

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