High Quality Product The Rubber Blade is Used in Pressure Tanks From 19 To 24 Liters Automatic Cold And Hot Water Automatic Pump Accessories The following is a detailed of the product (1) Product name: Pressure tank rubber liner (2) Volume: 19L To 24L; This volume refers to the volume of the pressure tank, not the volume of this product (3) After replacing the new blade, you need to add a certain air pressure to the top of the pressure tank to use it. If it is used without conflict, the water pressure may disrupt the product (4) This product can keep the water pressure stable in the pressure tank, reduce the frequent start and stop of the water pump, and stabilize the service life of the water pump (5) This product can be used in radiagm blader tanks, as the blader of pressure tanks Both horizontal and vertical tanks can be used The following is a reference for pressure tank dimensions