3/4 " NPT Cast Iron Filter Head Kit. Nose Thread (the Threads Where the Filter Spins Onto the Filter Head) is 1" - 12 UNF. Includes a 3/4 " x 7" NPT Pipe Nipple. Use with Filters F1810PM0, F1810PM1, and F1810HM0.
Prop 65 Notice
ATTENTION STATE OF CALIFORNIA CONSUMERS: *WARNING* Cancer and reproductive harm-www.p65warnings.ca.gov