Whole House Sediment Water Filter, Installs Easily On 3/4 inch Main Water Lines, Opaque Sump, Wrench Model #SW-2A True Value #504-434, Several Replacement Cartridges To Choose From Model #P-5 True Value #529-286, Model #CW-F True Value #583-393, Model #CW-MF True Value #583-401 Or Model #S1-AD True Value #614-800, Cartridges Sold Separately.