Continue shopping “154578 Pentair Purex SMBW 4000 Filter Vent Tube Cap” has been added to your cart. Product Price Quantity Total × 154578 Pentair Purex SMBW 4000 Filter Vent Tube Cap $14.17 154578 Pentair Purex SMBW 4000 Filter Vent Tube Cap quantity $14.17 Cart totals Subtotal $14.17 Shipping Shipping costs will be calculated once you have provided your address. Total $14.17 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update