Pentair Adapter Nut | FullFlow D.E. Valve | 274440Z Phosphate Removers check the existing knob and

check the existing knob and bolt assembly against your pump's parts diagram to confirm compatibility before adding to cart

P4RA 37400-0027S Sundance® Spas Theramax

locate the part number stamped or molded directly on your existing impeller and confirm it matches 16830-0209

housing the shaft seal assembly and maintaining the pressure boundary that keeps water separated from the motor cavity

For the salt water

Pentair Adapter Nut | FullFlow D.E. Valve | 274440Z Phosphate Removers check the existing knob andThe Pentair Adapter Nut (274440Z) is the OEM replacement fastener for the Pentair FullFlow D. E. Valve (Model 263011). IMPORTANT: 2 REQUIRED PER VALVE NOT SOLD AS A PAIR Two (2) of this nut are required per FullFlow D. E. Valve. This listing is for one (1) nut. Order the quantity you need accordingly. IMPORTANT: MUST BE ORDERED AS PART OF SHAFT ASSEMBLY This nut may not be purchased separately. Pentair requires it to be ordered as part of the complete