Brass Compression Ferrule Fittings with Male Thread for Copper Tube

Match the ferrule length to your tube's outer diameter and the depth of your fitting body. As a general rule, the ferrule length should be roughly equal to the tube's outer diameter. For example, a 15mm (≈5/8") ferrule is typically used with 1/2" pipe, while a 22mm (≈7/8") or 25mm (≈1") ferrule generally suits 3/4" pipe. Always verify against your fitting manufacturer's specification sheet.

These brass compression ferrule fittings are available in three nominal pipe sizes: 1/2", 3/4", and 1", covering the most common residential and light commercial copper tube applications.

Brass generally offers good corrosion resistance in typical indoor plumbing and moderate outdoor conditions. However, in highly aggressive environments (salt air, acidic water, or high-chlorine systems), additional protection or alternative materials may be advisable. Contact us to confirm suitability for your specific application.

These fittings typically use BSP (British Standard Pipe) or NPT (National Pipe Thread) male threads depending on the variant. Please confirm the thread standard in the variant description or contact us before ordering if your application requires a specific standard — mixing BSP and NPT threads will result in a poor seal.

Brass compression fittings of this type are generally rated for working pressures up to 200 PSI (≈14 bar) in standard water supply applications. Actual ratings depend on temperature, tube wall condition, and installation quality. Contact us to confirm for your specific use case.

No soldering is required — that's the key advantage of compression fittings. For the male thread connection, PTFE thread tape (plumber's tape) is recommended to ensure a leak-free seal on the threaded joint. Tighten the compression nut firmly by hand, then 1–1.5 additional turns with a wrench.

These ferrule fittings are designed primarily for copper tube. Use with plastic or PEX tubing is generally not recommended without an appropriate insert support sleeve, as the ferrule may deform softer tubing walls. Contact us to confirm compatibility with your specific tube material.

Buying in 3, 5, or 10-piece sets reduces the per-unit cost and ensures you have spares on hand for repairs, renovations, or multi-point installations — saving you time and shipping costs on future orders. The 10-piece option offers the best per-unit value for larger projects.