Pentair Large Stainless Steel Niche for Vinyl and Fiberglass/Liner, 3/4" Rear Hub | 78232400
Pentair
SKU: 78232400
Pentair Large Stainless Steel Light Niche, 3/4" Rear Hub, 10-Hole Pattern (Vinyl/Fiberglass) | 78232400
The Pentair 78232400 is a large stainless steel underwater light niche designed for vinyl liner and fiberglass pool/spa installations. It provides the recessed housing and conduit hub needed to mount compatible large-format pool lights while keeping the cord and connections protected and properly routed to a junction box.
Key Features
- Large stainless steel niche for corrosion resistance and long service life.
- 3/4" rear hub for conduit/cord routing from the niche to the junction box.
- Standard 10-hole mounting pattern used by many large pool light fixtures.
- Bonding provisions (internal/external bonding lugs) for code-compliant installation.
- Vinyl liner sealing hardware typically includes a sandwich gasket/sealing components for watertight wall mounting.
Compatibility & Use
- Pool type: Vinyl liner and fiberglass pools/spas
- Light type: Large niche-style underwater lights using a 10-hole pattern
- Important: Confirm your existing niche/light pattern and hub location/size before ordering. “Large niche” parts are not interchangeable with small niche or nicheless systems.
Specifications
- Brand: Pentair
- Part Number: 78232400
- Niche Type: Large niche (vinyl/fiberglass)
- Mounting Pattern: Standard 10-hole
- Hub Location: Rear
- Hub Size: 3/4"
- Material: Stainless steel niche housing (with brass hub components on many builds)
- Approx. Diameter: 12-1/2"
- Approx. Depth: 8.02"
- Quantity: Sold individually
Common Reasons to Replace
- Corroded, damaged, or leaking niche during renovation or liner replacement
- Stripped/damaged hub or conduit connection
- Converting to a different large niche light system that requires a compatible niche
- Restoring bonding integrity and proper sealing hardware on older installations
Installation Notes
- Underwater lighting installation must follow local electrical codes and should be performed by a qualified pool professional/electrician.
- Verify conduit routing, junction box location/height requirements, and bonding/grounding needs before setting the niche.
- For vinyl liner installs, ensure sealing surfaces are clean and hardware is tightened evenly to avoid liner distortion and leaks.
Related Products
- Search Aqua Pool Supply for 78232400
- Pool Light Junction Boxes
- Pool Light Gaskets
- Light Face Rings & Trim
- 3/4" Conduit Fittings for Pool Lights
- Large Pool Light Niches
Maintenance Tips
- When servicing a light, replace sealing gaskets as needed—reusing old gaskets is a common cause of leaks and moisture intrusion.
- Keep bonding connections clean and secure; corrosion at bonding points can create reliability and safety issues.
- If you see fogging/water behind the lens or repeated GFCI trips, shut off power and have the light system inspected immediately.
- Maintain balanced water chemistry to reduce corrosion risk on metal components over time.
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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