SharkBite 3/4 Inch Copper Crimp Rings, Pack of 25, PEX Pipe, PE-RT, 23103CP25 Product Description CUT. PUSH. DONE. The SharkBite 25 Pack, 3/4 inch, PEX Cinch Barb Crimps make PEX barb fitting connections. Use with Cinch Tool on cross link polyethylene PEX tubing connections. After crimping you can immediately test each fitting to well over 100 PSI. After crimping you can immediately test each fitting to well over 100 PSI. The SharkBite Connection System makes any plumbing project fast and easy thanks to unique push-to-connect technology. When you insert a pipe into a SharkBite quick-connect fitting, the fitting's stainless-steel teeth bite down and grip the pipe, while its special O-ring compresses to create a watertight seal. No soldering, no crimps, no glue. SharkBite products work with your existing plumbing, are easy to disassemble for changing and reusing fittings, and can be rotated for installation in tight spaces. Whether you need to repair a broken pipe or plumb a whole house, SharkBite provides a push-to-connect solution and leak-free results. From the Manufacturer SharkBite 23103CP25 Crimp Rings 3/4-Inch (25 pack) Features INSTALLS IN SECONDS: No soldering or glue; Just crimp to create a watertight seal ASSURANCE: Copper crimp rings and heavy duty PEX Crimping tool do not require calibration and allows each joint to be checked with a go/no-go gauge QUALITY: Only SharkBite's quality and performance is field-proven with more than 550 million connections; SharkBite is the only push-to-connect brand than can ensure a clean, leak-free connection USE: Use with SharkBite PEX pipe tubing, PEX Crimp Tool and barb fittings RESIDENTIAL and COMMERCIAL: All SharkBite products meet the same standards for commercial and residential plumbing applications USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.