Horobin Plug Drain Stopper Center Locking 100 x 12.5mm Steel [Pack=2]

Centre locking plug required for leak testing undergeround pipework prior to them being infilled as per regulations. · · · Expanded from central locking wing nut · · Thrustwashers fitted as standard on all plugs 9 (225mm) & above. · · Zinc plated corrosion resistant to 90 hours salt spray test. · · Combines the economy of price with the strength of steel. · · Carries the Horobin name quality guaranteed. · · Will Fit Pipes With Internal Diameter Minimum :- 94mm Maximum :- 108mm · · Minimum Insertion into Pipe :- 37.5mm · · Maximum allowable back pressure :- 10 p.s.i.