The KleenWater Premier KWHW2510 is a heavy duty hot water filter for various high temperature filtration needs. The filter accepts any universal 2.5 x 10 inch cartridge. Cartridges are not included. See our other KleenWater Premier packages for combination filter/cartridge value packages. This system includes: (1) High temperature hot water filter by KleenWater (1) Mounting bracket with 4 screws (1) Filter wrench The KWHW2510 filter is made in Italy with glass reinforced polyamide. It is rated for maximum temperature of 176 degrees F and 116 psi. The inlet / outlet is 3/4" FPT. The filter is equipped with a pressure relief valve which facilitates a quick and easy cartridge change. Filter dimensions are approximately 5 1/2 inch(W) X 12"(H). Use the Amazon search bar to order KleenWater compatible cartridges: KW2510SWHT-without-siliphosQty3 - high temp dirt sediment cartridges KW2510SWHT(3) - high temp sediment cartridges with polyphosphate - prevents hardness scale formation RG2K3W7 - replacement o-ring Please enter RG2K3W7-Qty6 into the search box to view six replacement o-rings for this filter. It is important to have spares available to avoid an urgent situation. It is recommended that the o-ring be replaced annually. KleenWater is a trademarked brand name owned by Pavel Water Filtration.