Pentair FNS Plus Tank Lid Assembly 60 sf | 170022
Pentair
SKU: PEN170022
Pentair 170022 – Replacement Tank Lid for FNS Plus 60 sq ft DE Filter
The Pentair 170022 is the OEM replacement tank lid assembly designed for the FNS Plus 60 sq ft diatomaceous-earth (DE) pool filter. This lid closes and seals the filter tank, ensuring the internal pressure and flow–through during filtration and backwash cycles are maintained properly.
Key Features
- Tank lid assembly sized for 60 sq ft FNS Plus DE filters (model FNSP60).
- Manufactured from pool-rated, corrosion-resistant materials compatible with DE filtration systems.
- OEM-spec part — designed to match the original FNS Plus tank geometry and clamp assembly for a correct, leak-free fit.
Specifications
- Brand: Pentair
- Part Number: 170022
- Intended Filter Model: FNS Plus 60 sq ft DE filter (FNSP60 and compatible variants)
- Material: Pool / DE filter-rated thermoplastic / molded plastic suitable for pressurized filter tanks
When to Use / Replace
Replace the 170022 lid if the original is cracked, warped, leaking. Replacement is also necessary if the lid can no longer form a reliable seal — common causes include freeze damage, impact damage, or chemical degradation. A proper tank lid is critical to maintain safe, efficient filtration performance in DE filters.
Installation & Maintenance Tips
- Turn off the pump and relieve all pressure before removing the old lid — always ensure the system is depressurized before maintenance.
- Inspect the sealing surface on top of the filter tank and the gasket / O-ring (if present) — clean or replace as needed to ensure a tight seal.
- Transfer the pressure gauge and air-relief valve from the old lid to the new one, ensuring components are properly seated and tightened.
- Re-install the clamp band (or clamp ring) evenly around the tank, gradually tightening to avoid deforming the lid or tank.
- After installation, refill and prime the system — check for leaks at the lid seam, clamps, and around the air-relief before running the pump under full pressure.
- Periodically inspect the lid for cracks, UV degradation, or chemical damage — replace immediately if the integrity is compromised.
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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