Simmons 1 In. Low Lead Red Brass Insert Coupling is a high-quality red brass insert coupling designed specifically for joining pipes with ease and reliability. This coupling is carefully manufactured to comply with lead content regulations, ensuring that the wetted surfaces contain no more than 0.25% weighted average lead content. Its durable construction and low lead composition make it a safe and dependable choice for plumbing applications where lead exposure must be minimized. Model Number: CB-4