Windshield Washer Fluid Additive, 16.9-oz.

Rain-X , 16.9 OZ, Windshield Washer Fluid Additive, Instantly Deposits Rain X Treatment Every Time You Use Your Windshield Washer Fluid, Compatible With All Windshield Washer Fluids, Provides Outstanding Cleaning & Leaves A Water & Soil Repellent Finish That Reduces Wiper Chatter, Streaking, & Smearing, Rejuvenates & Extends Rain X Performance, Summer Use: Add 4 OZ To Treat 1 Gallon Of Plain Water In Washer Tank, Winter Use: Add 4 OZ To 1 Gallon Of Any Winter Premix Washer Solvent, 16.9 OZ Treats Over 16 Gallon Of Water Or Premixed Washer Fluid.