MERLIN 1/4 in. Male Brass Industrial Coupler for $3.49

Buy the MERLIN 1/4 in. Male Brass Industrial Coupler (Item 63558) for $3.49 with coupon code 58454917, valid through August 2, 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.