Pentair Large Stainless Steel Niches for Concrete, 3/4" Top Hub | 78210400
Pentair
SKU: 78210400
Pentair Large Stainless Steel Pool Light Niche for Concrete Pools, 3/4" Top Hub (10-Hole Pattern) | 78210400
The Pentair 78210400 is a large stainless steel underwater light niche designed for concrete (gunite/plaster) pool and spa installations. It provides a durable, corrosion-resistant housing for compatible large niche-style pool lights and includes a 3/4" top hub for conduit routing to a junction box.
Key Features
- Concrete pool installation: intended for gunite/plaster pools and spas.
- Large niche format: fits compatible large pool/spa lights using a standard 10-hole mounting pattern.
- 3/4" top hub: top-mounted hub for conduit routing and easier layout in many builds.
- Stainless steel housing: long-lasting, corrosion-resistant niche body.
- Bonding provisions: includes internal and external bonding/grounding lugs for code-compliant bonding.
- Common light compatibility: typically used with Pentair AmerLite and IntelliBrite 5G (verify by your light model and mounting pattern).
Specifications
- Brand: Pentair
- Part Number: 78210400
- Niche Type: Large stainless steel niche
- Installation: Concrete pools/spas
- Mounting Pattern: Standard 10-hole
- Hub Location: Top
- Hub Size: 3/4"
- Approx. Overall Diameter: 12.5"
- Approx. Inside Diameter: 9.86"
- Approx. Depth: 8.02"
- Approx. Packaged Dimensions (listed by some suppliers): 12" x 12" x 8-1/4"
- Quantity: Sold individually
Installation Notes
- Underwater lighting and bonding/grounding work should be performed by a qualified pool professional/electrician and must follow local code.
- Plan conduit routing from the 3/4" top hub to a listed pool light junction box in the required location.
- Set the niche square and at the correct elevation before gunite/plaster—misalignment can affect trim fit and gasket sealing.
- Match your light style (large niche, 10-hole) and confirm all required trim, gaskets, and hardware for your specific light model.
Common Reasons to Replace
- Corroded or damaged niche during renovation or major lighting upgrade
- Stripped/damaged hub or conduit connection
- Restoring proper bonding provisions on older installations
- Converting to a compatible large niche light system requiring a large stainless niche
Related Products
- Pool Light Junction Box (78310500)
- Large Light Stainless Face Ring (79110600)
- Large Light Lens Gasket (79101600Z)
- Large Niche Plaster Ring (79211600Z)
- 3/4" Conduit & Fittings for Pool Lights
- Pentair AmerLite parts
- Pentair IntelliBrite 5G parts
Maintenance Tips
- Any time a light is opened for service, replace the lens gasket and tighten clamping hardware evenly.
- Keep bonding connections clean and secure; corrosion at bonding points can create reliability and safety issues.
- Maintain balanced water chemistry to help reduce corrosion on metal components over time.
- If you see fogging/water behind the lens or repeated GFCI trips, shut off power and have the system inspected immediately.
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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