Watts PEX LFP-516 Female Adapter 1/2-Inch Barb x 3/4-Inch Fem Pipe Low-Lead, Brass Low Lead 1/2-Inch Barb x 3/4-Inch FIP Brass Pex Adapter No soldering, no threading, and no waiting Solid, leak-proof connection completed in a matter of seconds Listed by the NSF International to NSF Standards 14 and 61 for use in potable water systems Low lead brass is not more than a weighted average of 0.25% lead when used with respect to the wetted surfaces of pipes and pipe and plumbing fittings and fixtures