The Nowata 1S Series cartridge filter housings are available in 1, 2, 3 or 4 cartridge length models. These filters are ideal for many high pressure, low volume applications. All models are made of carbon steel and have a 2000 psi working pressure. These filters are commonly used by the petroleum production industry in secondary recovery water flood applications. A filter is normally placed at each individual input well just ahead of the meter. The cast steel head mounts directly in the flow line. The filter may be mounted in any position. The fluid or gas enters one side of the head and is channeled to the area around the cartridge. The fluid or gas passes through the depth type cartridge into the center tube and out the other side of the head. The direction of flow, from dirty inlet to clean outlet, is indicated by an arrow cast in the filter head. The body is connected to the head by a two bolt, grooved coupling and sealed with a double lip gasket. All 1S series models are made of carbon steel. For added corrosion resistance, the 1SP series models are available with epoxy lined, carbon steel bodies. Each model is equipped with a 1/4 inch internal pipe thread drain in the bottom of the body. The 1S series is well suited for many filter applications requiring low cost, durable, easily operated filters.