Continue shopping “071136Z Pentair Purex SMBW 2000 Filter & WhisperFlo Pump Clamp Knob” has been added to your cart. Product Price Quantity Total × 071136Z Pentair Purex SMBW 2000 Filter & WhisperFlo Pump Clamp Knob $21.26 071136Z Pentair Purex SMBW 2000 Filter & WhisperFlo Pump Clamp Knob quantity $21.26 Cart totals Subtotal $21.26 Shipping Shipping costs will be calculated once you have provided your address. Total $21.26 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update