ITD5135 Freestanding Bathtub Drain Blank Kit [Compatible]: bathtub drain and overflow kit is suitable for all freestanding bathtubs, floor-standing bathtubs and island bathtubs, and can be stably installed on wood, cement, tile and concrete. [Sturdy embedded drain]: drain rough-in kit is fixed between the subfloor and the tile for added safety and stability. The test/dust cover not only protects the drain during construction, but also allows for multiple air pressure tests. [Prevent water backflow]: The overflow kit tightly connects the bathtub and the floor, and the brass tube increases the stability and safety of the bathtub installation, effectively preventing water backflow and potential odor. [Protective design]: ① Built-in removable test cover for water/air testing; ② Protective cover - prevents cement and masonry from falling before installation is completed; ③ 2inch to 1½inch drain adapter, standard US pipe connector perfectly fits 1½inch or 2inch p-trap. [Suitable for freestanding bathtubs]: Recommended for plumbers/remodeling contractors/builders/DIY personnel to install on freestanding bathtubs, simple installation and convenient drainage. [Package Includes]: Drain body, fine thread tailpiece, flange tailpiece, PVC adapter, brass nut, screw and anchor kit, 2-inch to 1½-inch drain adapter, polyethylene gasket, protective membrane cover, Colour:Photo Color Material:brass+ABS Package Contents: 1 x Freestanding Bathtub Drain Blank Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.