New in Packaging Progressive Filter Cartridge (Standard) for Hot Tubs Please Read! Pre filter is NOT included! Please maintain your pre filter from the filter you are replacing! Keep your hot tub crystal clear with this Arctic Spas Progressive Filter Cartridge. Designed to fit seamlessly into your existing system, this standard filter is an essential component for maintaining water quality and ensuring a long-lasting, refreshing spa experience. Crafted with a sleek black color, this filter seamlessly integrates into your hot tub environment. Ideal for those who value both form and function in their spa accessories, it provides a reliable solution for keeping your hot tub clean and inviting. Enjoy a hassle-free spa season with this essential filtration tool.