Made of Nitrile this is a replacement INLET valve assembly for the Edson Models 554 and 638 Bottom Inlet Manual Pumps. Nitrile is an elastomer with very good dynamic strength and is highly resistant to the effects of oils and general waste products.
Made of Nitrile this is a replacement INLET valve assembly for the Edson Models 554 and 638 Bottom Inlet Manual Pumps. Nitrile is an elastomer with very good dynamic strength and is highly resistant to the effects of oils and general waste products.