Manufacturer Part Number: NLN50XH|Design|Valve Type|CheckTube Outside Diameter (Fractional Inch)|Tube Outside Diameter (mm)|Pipe Size|4Connection Type|Material|End Connection|WaferMounting Orientation|Body Material|Cast IronWOG Rating (psi)|WSP Rating (psi)|Crack Pressure (psi)|Overall Length (Decimal Inch)|Spring Material|Stainless SteelPiston Material|Seal Material|Nitrile butadiene rubberColor|Maximum Working Pressure|250psiStandards|NSF/ANSI 372; NSF/ANSI 61Lead Free|YesEpa Watersense Certified|Material Grade|Compression Style|Swagelok Part Number|Minimum PSI|Special Item Information|For Use With|Tube Inside Diameter|Port Size|Port Type|Vehicle Make|Solids Handling|Width (Inch)|Cv Rating|Width (Decimal Inch - 4 Decimals)|Minimum Temperature (C - 2 Decimals)|Maximum Temperature (F) ( - 0 Decimals)|180.00Minimum Temperature (Deg F - 3 Decimals)|Maximum Temperature (C)|1882.00Product Service Code|UNSPSC Code|