Free Shipping $100+ | Genuine Spa Brand Products
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)
Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)

Available in stock (386)

Hot Tub Things® Calcium Increaser – Professional Spa Hardness Booster (32 fl oz)

Type: Clarifier

SKU: 30209

Barcode: 850511004222

$25.50
Shipping calculated at checkout.

Transform your spa experience with Hot Tub Things® Calcium Increaser, the professional-grade solution for maintaining optimal water hardness in your hot tub or spa. This concentrated 32 fl oz formula quickly raises calcium hardness levels, protecting your equipment from corrosion and extending the life of your spa investment.

Size: 32 fl oz
Pickup available at Burlingame Usually ready in 24 hours

Low calcium hardness can cause serious damage to your hot tub's heating elements, pumps, and surfaces. Our Calcium Increaser (also known as a spa hardness booster) delivers fast-acting results, bringing your water chemistry into perfect balance and preventing costly repairs down the road.