which is compatible with most hot tubs filter standpipe in white, and meet your daily replacement needs Spa Accessories: the hot tub filter replacement 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 replacement 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 replacement 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 Colour:White & Gray Material:plastic Package Contents: 6 * Hot Tub Filter Standpipe Caps 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.