3/8 inch Brass Compression Cap

3/8" Lead-Free Brass Compression Cap – Built for Sealing Integrity and Code Compliance

The 3/8" Lead-Free Brass Compression Cap is designed to deliver dependable shut-off and end-point termination in copper tubing systems. Manufactured from no-lead brass alloy, it provides a secure, leak-resistant seal for potable water and general plumbing applications in accordance with national and state codes.

Ideal for service terminations, equipment isolation, and temporary system closures, this cap installs quickly and forms a robust compression seal over 3/8" O.D. tubing without requiring soldering or additional fittings. Its corrosion-resistant properties and mechanical strength ensure long-term performance even in variable temperature or pressure environments.

Key Technical Specifications

• Material Composition: No-lead brass alloy (<0.25% lead), compliant with NSF/ANSI 61 and 372 standards.
• Nominal Size: 3/8" outer diameter tubing compatibility.
• Connection Mechanism: Compression cap – provides a mechanical seal via ferrule compression without thread sealants.
• Use Case: Designed for water distribution systems, fixture isolation, or system test closures.

Contractor-Preferred Features

• ✅ Regulatory Compliance – Approved for potable water systems in all 50 states under lead-free legislation.
• ✅ Field-Ready Durability – Withstands pressure fluctuations and is suitable for both indoor and outdoor use.
• ✅ Precision Machining – Manufactured to tight tolerances to ensure accurate seat contact and reliable sealing performance.
• ✅ Tool-Free Application – No need for threading or soldering; requires only a wrench for proper torque installation.
• ✅ Corrosion Protection – Resistant to dezincification and scaling in potable and non-potable water systems.

Typical Applications

This compression cap is commonly specified for system maintenance, capped branch lines, or service valve terminations where permanent or temporary sealing is required. It is widely used in both new construction and repair work, particularly where soldering is impractical or prohibited.

Code Insight

Per current U.S. plumbing codes, all components used in potable water systems must meet lead-free criteria. This product is fully certified and manufactured to comply with the Safe Drinking Water Act (SDWA) amendments.

For professionals requiring a reliable sealing solution that aligns with safety codes and job site demands, the 3/8" Lead-Free Brass Compression Cap is a trusted component for precision-driven installations. Built to specification for contractors who prioritize long-term system performance and regulatory adherence.