STEEL/WHITE FIXED BAR RETURN AIR FILTER GRILLE 20" X 20" WTIH R4.2 MOLDED INSULATED BACK
$31
Carbonate hardness, (KH), is a measure of the bicarbonate & carbonate content of the water. Carbonate hardness contributes to pH stability and can also act as a CO2?backup reserve if CO2?levels fall too low.
carbonate? is derived from potassium bicarbonate. It increases both carbonate hardness and potassium. The concentration of carbonate? is 2000 meq/L (5600 dKH). In addition, it contains 78,300 mg/L potassium.
Charlotte Davis - 2024-03-03
Remarkable service! The product exceeds expectations in quality and the shipping speed was simply incredible!