3/4" Schedule 40, CPVC Or 3/4" & 1" Copper Condensate Pipe Connector, Ideal For Fast & Easy Installation Of Condensate Lines On Air Conditioning Units & Any Drain Application That Uses 3/4" Or 1" PVC, CPVC Or Copper Drain Pipes, Also Makes Any Future Drain Line Service Calls Fast & Easy, Not For Use In Pressure Or Potable Water Applications.