MERLIN 1/4 in. Brass Industrial Coupler for $4

Buy the MERLIN 1/4 in. Brass Industrial Coupler (Item 63558) for $4 with coupon code 77889397, valid through June 17, 2026. See the coupon for details.

Save on Harbor Freight’s customer favorites with our super coupons. Search our Harbor Freight coupons for deals on Harbor Freight’s generators, air compressors, power tools, and more.