Brushed Nickel Chrome Matte Black Oil Rubbed Bronze Champagne Bronze The cover of the plastic button is made of brass, value for money and durable.Both buttons have drain holes and rubber gasket. Effectively prevent water entering the air tube and buttons. Pakage Include 1x Control Box1x Push Button1x Vacuum Hose2x Rubber Gasket1x Mounting Screws Install Button installation Install the buttons and accessories directly into the standard sink hole. Button mounting portion of the length of 2.68 inches. In the order shown, Button--Rubber Gasket--Sink Top/Counter Top--Rubber Gasket--Metal Gasket--Screw Nut.Tighten the plastic nut to ensure a seal. Tips: Drill a hole with diameter not narrower than 1-3/8inches. Countertop or Sinktop not thicker than 2.50 inches. Air Tube installation Pass the air tube through the nut.Then connect the nozzle of the air tube to the protrusion.Push in forward. General diagram Install air switch button on sink top.Use air tube to connect air switch button and power module.Plug the controller into the wall socket and press the button to get started. Tips: Gently press the air switch button to start the garbage disposal, press again to turn it off. Single Outlet Air Switch Kit Dual Outlet Air Switch Kit Cordless Air Switch Kit Single Outlet Air Switch Kit Air Switch Button Add to Cart Add to Cart Buying Options Buying Options Add to Cart Customer Reviews 4.6 out of 5 stars 466 4.6 out of 5 stars 324 4.7 out of 5 stars 388 — 4.6 out of 5 stars 423 Price $59.99$59.99 $58.99$58.99 — no data — no data $26.99$26.99 Button Weight 270 Gram 270 Gram 60Gram 60 Gram 60 Gram Button Material Brass Brass Plastic + Brass Plastic + Brass Plastic + Brass Install Hole 1-3/8" 1-3/8" 1-3/8" 1-3/8" 1-3/8" Air Tube 1.5 m 1.5 m 1.5 m 1.5 m 1.5 m Power 2HP 2HP 2HP 2HP X