The chlorine feeder parts and the check valve and inlet coupling assembly are suitable for CL200 and CL220 series, just take them home with confidence if you have the need; Please make that the model of this product is compatible with your chlorine feeder before purchase You need to cooperatively use the check valve and inlet connector adapter assembly with CL220 series chlorine gas feeders, which can prevent backflow of pool water, saving you much trouble The CL200 chlorinator parts are made of quality material, which is reliable and can last for using, they 't produce harmful substances during the using process The chlorinator parts have a good pool purification function, which means they can clean the swimming pool to some extent and make the water clear, providing your pool with good maintenance and creating a better enjoy surroundings color:White+black Material:plastic+metal Package Contents: 1 x Chlorine Feeder Parts 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.