The outside edge of the corner guard features a 1/8 of an inch radius

or won't stop the toilet from running

Connection: Flanged x Flanged

Gray - 1807

Speakman S-2005-HB Anystream Hotel Showerhead

Cash Valve Bronze Adjustable Back Pressure Relief Valve, FNPT Inlet Type, FNPT Outlet Type - 13697-0005 Hadrian The outside edge of theBackpressure ValvesSeries FR, Temp. range: 40 to 450F,Fully automatic valves maintain preset inlet pressure, regardless of variations. All have a stainless steel spring. Ranges are factory set at midrange and can be adjusted in the field to meet specific application requirements. FNPT connections. Provide continuous protection of pumps, process piping systems, and similar equipment in most hydraulic systems.,Meet CSA and CRN standards.