Your fitting just dropped into the existing drain hole and fits perfectly. The look is also very satisfying too. From under the sink, insert the pivot rod into the opening in the side of the tailpiece. Usually, there is a plastic washer on each side of the plastic ball. You should be able to feel the tip of the pivot rod slide through the opening in the stopper linkage inside the drain assembly. Lift the entire drain assembly clear of the sink. This may require some wiggling of the tailpiece to break the seal on the drain flange. The Universal Sink Drain Stopper is everything that was stated on the advert. I was expecting it to be quite cheap looking.

Make sure your stopper is in the fully up (open) position before connecting the horizontal pivot rod to the vertical lever. Screw the pivot rod nut onto the threaded fitting on the side of the tailpiece so the ball is secured inside the tailpiece. Connect the vertical strap to the horizontal pivot rod by threading the spring clip onto the rod; one end of the clip attaches to each side of the strap.I actually needed a product that would fit into a pre-existing drain hole where the normal lever system had broken which released the plug. Apply a generous bead of plumber's putty to the underside of the flange on the sink drain ring. The putty will help the upper part of the drain assembly seal against the sink drain opening. Push the pop-up drain tailpiece assembly up through the drain opening from under the sink as high as possible. Scoop out a ball of plumber's putty and roll it in your hand to form a long rope. The putty will compress better when warmed by rolling it in your hands.

Tool-free Installation, Anyone can install the pop-up drain because of its simple structure, just take out the old one and insert the strainer core to complete installation. While holding the drain piece in place, fit the drain ring into the opening from above the sink, and thread the ring onto the drain tailpiece as far as you can by hand.Unlike ordinary button drain plugs, the upgraded pop-up sink drain plug has an anti-clogging basket inside that collects hairs and prevents the drain from clogging and your ring will never enter the sewer again. Our sink drain filter is designed with a new small diameter, our 2 silicone rings ensure a perfect fit with various drain holes, conforming to 34mm - 40mm(1.34" - 1.57") sink drain holes. Apply a thin layer of pipe joint compoundto the top side of the rubber washer that will fit against the sink.