Harbor Freight online coupon details: Keep some extra money in your wallet by redeeming the Harbor Freight online coupon available here. You'll receive an extra 50% discount off a Pancake Air Compressor with this Harbor Freight online coupon at checout. Percentage off Harbor Freight online coupons are limited to any one single item purchased when you shop at Harbor Freight Tools (unless otherwise stated, applies to online orders only). Product specific Harbor Freight online coupons are good while supplies last. For online purchases, product specific Harbor Freight online coupons are limited to one item only. This online coupon for Harbor Freight cannot be used or combined with any other discounts or offer on the same item. The Harbor Freight online coupon is not valid on any of the following: prior purchases, gift cards, Inside Track Club membership, extended service plans, Compressors, Generators, Tool Cabinets, Welders, Floor Jacks, Campbell Hausfeld products, open box items, Parking Lot Sale items, Blowout Sale items, Day After Thanksgiving Sale items, or Tent Sale items. Other items may be excluded from Harbor Freight online coupon use for online sales or phone orders. For online sales, checkout cart will show if online coupon for Harbor Freight has been applied to a product in the cart. Harbor Freight online coupons cannot be bought, sold or transferred. The online coupon for Harbor Freight must be entered online in the shopping cart to receive the offer. There is a limit one Harbor Freight online coupon per customer per day.