Features: Brand new and high quality Keep your pool filtration system running smooth with the CX900DA Knob Kit Replacement, designed for easy knob replacement. Crafted from ABS material, this knob kit ensures reliable operation and extended use for your filters. Pool maintenance professionals and homeowners can rely on this convenient knob kit for convenient upkeep of their filtration equipment. Suitable for various types of pools, both indoor and outdoor, this knob kit for maintaining water quality in your pool. Enhances your pool maintenance center with this knob kit, ensuring easy installation and efficient operation of your filtration equipment. Specifications: Material:ABS Package Includes: 2x Washers 1x O-rings 1x Guide 1x Clip note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.