Gain 194-Ounce Laundry Detergent: Get 4 for $42 With Amazon Promotion

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There's a new Amazon promotion on 194-ounce Gain original laundry detergent. If you buy four jugs, you'll save 33%. Be sure to redeem the promo code SAVEONGAIN to earn the savings at checkout.

You can also save up to 15% using Subscribe & Save. You need five active subscriptions sent to the same address to get the maximum discount.