Pentair Tall Standpipe Outlet Assembly | 190037
Pentair
SKU: 190037
Pentair 190037 Outlet Standpipe Assembly (22-3/8" Tall) for FNS Plus 60 Sq Ft D.E. Filter
The Pentair 190037 is an OEM outlet standpipe assembly used inside the Pentair/PacFab FNS Plus 60 sq ft vertical-grid D.E. filter (commonly referenced as FNSP60). The standpipe channels filtered water from the internal grid/manifold area to the outlet bulkhead, helping maintain proper flow and preventing internal bypass.
Key Details
- Part number: 190037
- Description: Outlet standpipe assembly
- Filter size: 60 sq ft FNS Plus
- Overall height (commonly listed): 22-3/8" tall
- Location: Inside the filter tank (outlet/return path)
Common Compatibility (Verify Your Model)
- Pentair/PacFab FNS Plus vertical grid D.E. filter: 60 sq ft (commonly FNSP60)
Always confirm fit by matching your filter model number and the standpipe height/style shown on your parts diagram.
What This Part Does
- Directs filtered water from the internal assembly to the outlet connection
- Helps maintain correct internal flow routing and filtration performance
- Restores proper fit when the original standpipe is cracked, warped, or missing components
When to Replace
- Cracks, splits, or deformation in the standpipe body
- Poor internal fit after service (standpipe no longer seats correctly)
- Unexplained internal bypass symptoms after confirming grids/manifold and seals are in good condition
- Damage discovered during a rebuild or tank component replacement
Installation Notes
- Shut off the pump and relieve all pressure at the air relief before opening the filter.
- Remove the grid assembly as required to access the outlet standpipe.
- Inspect sealing surfaces and any related O-rings while the tank is open; replace worn seals as needed.
- Reassemble carefully so the standpipe seats squarely and does not bind.
- After restart, check for normal pressure/flow and confirm there are no internal leaks or abnormal behavior.
Related Products (Aqua Pool Supply)
- FNS Plus 60 Grid Elements (Search)
- FNS Plus Manifold / Internal Assemblies (Search)
- FNS Plus Air Relief / Gauge Parts (Search)
- FNS Plus Tank O-Ring / Seals (Search)
- D.E. Filter Powder (Search)
Maintenance Tips
- Always bleed air and confirm the pressure gauge reads zero before opening the filter.
- Record your clean starting pressure after each full cleaning to spot restrictions early.
- When the filter is open, inspect internal plastic parts for hairline cracks and stress marks to prevent mid-season failures.
- Use only pool-safe silicone lubricant on O-rings and seals; avoid over-lubrication that can trap debris.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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