Universal Flange Adapters Are Designed For Use On Air; Water; Sewer And Gas Pipelines. The Adapters Fit A Variety Of Pipe Sizes; Thus Dramatically Reducing The Number Of Product To Be Stocked For Maintenance Purposes. The Adapters Are Suitable For Steel; Pvc; Ductile Iron; Asbestos Cement; Grp; Cast Iron And Concrete Pipes. The Greatest Benefit Of A Universal Adapter Is The Universal Drilling; Each Adapter Will Fit Both Bs4505 Pn10 And Pn16; Sab T1000/3 And T1600/3 Flange Drilling; Some Cater For Additional Drilling Such As Bs10 Table D; E And F Or Ansi Flange Drilling.