Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

GLB 1-lb

  • Helps maintain proper calcium hardness level of 150-250 ppm

  • One pound of GLB Calcium Hardness Increaser will increase the calcium hardness 10 ppm in 10,000 gallons of water

Best Price. Guaranteed
Find a lower price on an exact item? We'll match it. Some exclusions apply.
Price Guarantee
FREE Returns
Return it in store or ship it back for free. Eligibility rules apply.
Return Policy
Pay Your Way
Credit card, PayPal or Buy Now, Pay Later options available at checkout. Your choice.
Payment Options