Rothenberger 12517 Rolock Expander Set 3/8", 1/2",3/4", 1" O.D.

Features:

•   Resilient and durable due to specially hardened segments
•   Up to 50 % savings in costs for working time, soldering material, solder joints and energy compared to fitting connections
•   Insertion depth according to DVGW specifications
•   Forced guidance guarantees perfect centering and uniform capillary gap
•   Bayonet lock allows quick change of expander head

With the Rolock expander heads, plumbers in the SHK and refrigeration/air conditioning industry can expand pipes made of copper, stainless steel and aluminum to create a pipe connection without a fitting.