HOT WATER VERSION - Large Lower Piston Assembly for the Fleck 2900 and 2930 valves ( NOT newer 2900s ).
This is the NHWBP ( No Hard Water By Pass ) version. And made for HOT WATER Applications ( if not "hot water", then use PN 60104 ).
Meaning it DOES NOT allow any water to flow past the valve while the system is in regeneration.
** SPECIAL ORDER Item - 2 to 3 week Lead Time Before Shipping **
Part Number: 3460104-01
Usually Ships in 2 to 3 Weeks