if it is the Milton Signal Bell you prefer

For Hose Reels: 2120-013

High pressure hose assemblies are ideal for Zeeline by Milton™ air operated grease pumps

In-Line Digital MeterHas a one (1) 1-1/2" (F) inlet/outlet

¼ " 28 Taper 45°  - 657

Milton 731BK M-STYLE® Recapper Plug Lower level lube bay equipment if it is the MiltonM STYLE Recapper Plug Maximum inlet pressure of 300 pounds per square inch 40 standard cubic feet per minute Maximum temperature of 250 degrees Fahrenheit Complies with military specifications MIL C 4109 M Style recapper plugs thread directly onto tire valve thread. These steel recapper plugs have a . 305 32 recap thread size and offer up to 40 SCFM. M Style plugs have a 1 4" basic flow size and a maximum inlet pressure of 300 PSI.