This durable, corrosion-resistant, plated brass pipe nipple, is great for all residential house pressure, and plumbing applications. All sizes feature male tapered pipe threads on both ends of the nipple, for use with PTFE tape or pipe dope, and conform to ASME B1.20.1. These are SCH 40 nipples adhering to ASTM B687 and are lead-free, meeting NSF 61 requirements. This item is sure to complement your existing fixtures. Westbrass fine decorative plumbing since 1935.