4″ Weld Bell x 4″ NH Part No: 500201 Material: Stainless Steel Dimensions: N/A Weight (approx.): 4.5 Case Quantity: N/A List Price: N/A Stock: In stock Description4" National Hose Thread x 4" Weld Categories National Hose Thread (NH/NST) Stainless Steel Castings Download Part Drawing In Stock. 4″ Intake Screen for this casting is also available, Part Number 500201.