Pentair FNS Plus Tank Bottom Assembly 48 sf | 170017
Pentair
SKU: 170017
Pentair 170017 Tank Bottom Assembly – Fits FNS Plus 48 sq ft DE Filter
The Pentair 170017 is a replacement tank bottom assembly specifically designed for the FNS Plus 48 sq ft D.E. filter model. It restores structural integrity to the filter system by replacing the lower half of the tank.
Key Features
- OEM replacement tank bottom assembly for the FNS Plus 48 sq ft DE filter.
- Constructed from durable, filter-rated material to withstand pool system pressures and chemical exposure.
- Helps extend the life of the existing filter system rather than necessitating a full replacement.
Technical Specifications
- Part Number: 170017
- Compatible Filter Model: FNS Plus 48 sq ft DE filter
- Component: Tank bottom assembly including standpipe and mounting interfaces
Installation & Compatibility Notes
Prior to installation, shut off the filter pump and relieve system pressure. Remove the existing filter tank bottom, retaining any existing hardware or fittings as needed. Install the new 170017 assembly, ensuring alignment of the standpipe and mounting surfaces. Re-connect fittings, restore circulation and inspect for leaks or abnormal operation.
Maintenance Tips
- Inspect the tank body annually for cracks, warping or chemical damage; replacing the bottom assembly can restore system integrity and avoid full tank replacement.
- If you observe a drop in filtration performance or visible damage to the base, this part is designed for that repair scenario.
- Keep this assembly in your service inventory to minimize downtime when handling FNS Plus filter repairs.
Why Choose This Tank Bottom Assembly?
For pool service professionals, equipment suppliers and proactive homeowners maintaining the FNS Plus filtration system, the 170017 tank bottom assembly offers a cost-effective, direct-fit solution. It supports continued filtration performance without full system replacement and aligns with OEM repair standards.
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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