-Portable 16,000 Grain RV Water Softener NOT made in China, assembled by U.S….
Double Standard Softener 16,000 / 11 GPG = 1,454 gallons 16,000 / 58 GPG= 275 gallons. The Double Standard Softener & Conditioner produces twice the gallons compared to the standard model and is the largest compact RV softener on the market.