We are the only authorized seller of Hallmark Industries' products on eBay.
    Hallmark Industries Inc is the leading brand of water pumps for household and industrial applications.
    Based in Chicago IL, all customer services and warranty will be handled in the U.S.

    Brass check valve, 1"NPT male thread input, 1"NPT female thread output.

    Features & Technical Specifications:
    • Precision brass check valve, high quality and long lasting
    • 1" NPT male thread input, and 1" NPT female thread output
    • High precision check valve has a brass shaft, ensure low friction and resistance. Other brands have plastic shaft.
    • Can be installed directly into the pump's discharge with a 1"NPT thread. 
    • No nipple needed between the pump and check valve. That saves $15. 
    • Can be installed directly on Hallmark Industries' 3/4HP pumps (with 1"NPT). 
    • Spring loaded check valve with the rubber seat to ensure no leakage.
    • The spring can be removed to reduce the back load.

    Condition:  New in the box