The 15mmx1/2 Brass Compression Coupler Cxmi Is A Reliable Plumbing Component Designed To Create A Secure And Leak Proof Connection Between A 15mm Copper Pipe And A 1/2-Inch Copper Pipe. Whether youre A Diy Enthusiast Or A Professional Plumber; This Coupler Offers A Dependable Solution For Connecting Pipes Of Different Sizes.