●Package includes: 4pcs elbows + 6pcs couplings + 2pcs tees + 26pcs SS clamp rings + 20pcs J-clamps + 1pcs pipe cutter ●Standard: PEX fittings comply with ASTM F1807, ANSI/NSF/CAN 61, LEAD FREE. ●Material: Lead free DZR brass construction for durability and reliability. ●Installation: The PEX ends connected to PEX-b pipe with stainless steel pinch clamp rings by pex cinch tool or copper crimp rings by pex crimp tool. ●Applications:The PEX fittings can be used in plumbing projects.