Features: These filter standpipe caps in white fit common hot tub standpipe in white, which are vital part of hot tub filter system. Our reinforced caps can highly resistant to substances commonly found in spa applications, that offer long working time. Specifications: Material: plastic Color: white Size: 3-1/2 inch Package includes: 4 x Hot tub filter standpipe caps Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. What You Get: it comes with 4 pieces white hot tub filter standpipe caps, which is compatible with most hot tubs filter standpipe in white, and meet your daily needs Spa Accessories: the hot tub filter cap can be commonly applied on the white standpipe, to fix the spa filter in a vertical position, that is important part of the spa filtration system Easy to Install: these standpipe caps are designed for easy installation by screwing the standpipe into the filter wall fitting at the bottom of the filter compartment; Allowing you to quickly and easily replace old or breaking caps without the need for professional assistance Reliable and Long Lasting: our hot tub filter standpipe caps are made of quality plastic, providing lasting performance and reliability, ensuring a long term good experience for your spa Effective Protection: fastening this standpipe cap over the filter can effectively prevent debris, dirt and more from floating into the pipes and breaking the pump and inner workings of your hot tub, keep your hot tub in good condition