I have been reading about PB the last couple of days and trying to figure out the bestway to make some connections. I am a relatively new homowner. I have PB throughout the house with all copper connections. Which I gather is one positive thing. I need to replace the water heater. The copper from existing water heater are connected to the PB with crimp rings. I Have PB size 3/4"CTS-OD. That is what it says on the pipe. I have read that brass compression fittings will work fine to connect this PB to copper but I am having trouble finding a brass 3/4" compression X 3/4" MIP. Are these not made or do I need to look somewhere other than lowes and home depot?