PRODUCT FEATURES 1/2" MPT x 1/2" MPT Stainless Steel Nipple Reviews FEATURED PRODUCTS Polypropylene Nipple $1.22 Choose Options Other 1/4" MPT Stainless Steel Plug $3.12 Add to Cart Other 1/4" MPT Stainless Steel Coupler $6.96 Add to Cart 1/2" MPT X 1/2" Barb Stainless Steel $14.85 Add to Cart