Cim-Tek 805 Aluminum 1" Filter Adaptor Material: Aluminum adaptor Used on: 800 series Inlet/Outlet ports: 1" NPT Nose outside thread: 1 1/2" 16 UNF Available with gauge ports Price: $33.27 Choose Adaptor 50026 With Gauge Ports 805 $40.93 50109 W/O Gauge Ports 805 $33.27