For basin without overflow; Easy to install, with a standard installation dimension of 1 ¼", this waste plug is suitable for all commercial sinks. sink comes off by hand in just seconds unscrew, clean, screw and done Brass construction which is then chrome plated, anti-erosion, anti-abrasion Ring of sealing: very high density and continuous Attention: the sink hole must be regular round, the edge must be smooth and flat. If the basin hole is crooked and frosted, it will leak after you install this drain
