4500 - steel taps and tempered connectors
"Hardened steel quick connect coupler with European (universal) standard profile, compatible with the most popular connection nipple brands on the market. Designed and made with the latest CNC machines to guarantee longer life and increased strength in comparison with normal taps, since the parts subject to wear are made in tempered steel. The whole 4500 series is zinc-coated in order to ensure high performance over time. The range is also provided with PTFE thread seal coating to make assembly easy and save time. The 4500 nipple series is made in steel and male thread connections are supplied with Teflon-coated treatment."