The ports on the Jabsco 45490-1000 "Y" Valve are replaceable. The original valve is supplied with three 1-1/2" (38 mm) ports, and an extra 1" (25 mm) straight inlet port for connection to macerating toilets. This kit includes all four ports. It does not contain the O-rings that seal the ports. (The O-rings come in the 45488-0000 Service Kit.)
"WARNING: California Proposition 65 This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P130Warnings.ca.gov."
www.P65Warnings.ca.gov