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: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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