SpaGuard Rapid-Dissolve pH Decreaser Tabs

Drop-in or add directly to the filter compartment (with jets running)—these fast-dissolving dry sodium-bisulfate tabs lower pH by 0.1–0.2 units using just two tabs per 250 gal (~1 000 L). They act quickly to restore optimal water balance, protect your spa’s equipment, and ensure soaker comfort. Safer and neater than liquid alternatives. After application, give the water about 15 minutes and retest to confirm balance.

Size: 567g (approx. 30 tablets)