Sears offers the Black & Decker 18" Oscillating Sprinkler, model no. BD1978, for $3.99. Choose in-store pickup to avoid the $4.99 shipping charge. That's tied with our mention from a week ago, $18 off list, and the lowest price we could find. It features up to 3,000-square-foot coverage.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts. Plus, Shop Your Way Max members are eligible for free shipping.