APPLICABLEThis stainless steel push button is suitable for air pipe with inner diameter of 3mm. It is suitable for the control of pneumatic switch for garbage disposer, jacuzzi and children's toysMATERIALSAir button switch pneumatic is made of food grade ABS engineering plastics, which is durable, not easy to rust and deform, good use effect, can be used for a long timeSIZEAir pressure switch installation hole is about 28mm/ 1.1in, upper diameter is 38mm/ 1.5in, height is 64mm/2.5in50W TESTSAfter the ultimate elastic test for 50w times, multipurpose on off spa push button no deformation, no cracking, no air leakage, rest assured to use, bring more convenience to your lifeONE-PIECE MOLDINGAir switch button for swimming pools is one-piece molding, six-fold plating process, stylish, high-end, great for massage tub ,pumps for swimming pools and spas useFEATURESThe position where the air switch button is installed on the water tank is generally the opening position of the soap dispenser, and the appropriate size can be selected according to the opening of the soap dispenser