Pentair 2" Insider Fitting for Gunite White 542423
Pentair 2" Insider Fitting for Gunite White 542423
The Pentair 542423 2" Insider Fitting for Gunite Pools is designed to create a strong and professional-looking connection point inside gunite pool walls. This insider fitting installs during construction and provides a threaded interior finish once plastered. If you’re building or renovating a gunite pool, this fitting helps ensure long-term reliability and a clean final appearance.
What is the Pentair 542423 2" insider fitting used for?
The Pentair 542423 insider fitting is embedded in gunite pool walls to provide a threaded 2-inch connection for internal pool fittings. After plastering, it allows easy installation of eyeball fittings, wall returns, or other threaded accessories without exposed pipe. Its design ensures a firm connection that holds up over time.

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Key Features
- 2" insider fitting for gunite pool construction
- Flush-mount design for clean interior wall finishes
- Threaded interior accepts standard pool wall fittings
- Durable white PVC construction resists pool chemicals
- OEM Pentair part trusted by professional pool builders
Technical Specifications
- Manufacturer: Pentair
- Part Number: 542423
- Fitting Size: 2"
- Installation Type: Insider (embedded in gunite)
- Color: White
- Application: Gunite pool wall plumbing
Specs
- Part Number: 542423
- Manufacturer: Pentair
Expert Comparison & Pro Tips
Compared to standard pipe stubs cut flush after plaster, insider fittings provide more reliable threading, better alignment, and a cleaner appearance. They also reduce the risk of cracked plaster around fittings.
Pro Tip: During installation, protect the threaded interior with a temporary plug before gunite and plaster to keep debris out and ensure smooth final assembly.
Our Expert Verdict: A Small Part That Makes a Big Difference
In real-world pool construction, the Pentair 542423 insider fitting is one of those behind-the-scenes components that directly affects build quality and long-term reliability. It simplifies final plumbing, improves aesthetics, and creates a solid connection point you can trust. For builders and serious remodelers, it’s a smart, professional-grade choice backed by Pentair’s proven durability. Order from ShastaPoolSupply.com for fast shipping, expert product guidance, and dependable pool construction parts you can rely on.
How does the Pentair 542423 insider fitting improve pool wall plumbing?
By embedding directly into the gunite shell, the 542423 insider fitting creates a flush, threaded connection that’s easy to finish and easy to service later. It eliminates uneven pipe cuts and helps ensure wall fittings seat properly without stressing plaster or threads. If you’re aiming for a clean, long-lasting gunite pool installation, this fitting helps you get there.
Best For: New Gunite Builds & Remodels
The Pentair 542423 is best for gunite pool construction projects where a flush, professional plumbing finish is required. Builders and remodelers rely on insider fittings to avoid exposed pipe stubs and ensure easy final installation of return fittings after plaster. This fitting is not intended for vinyl or fiberglass pools, where different wall fittings are required.
Looking for wall fittings? They can be found here.
Best for:
- Gunite pool construction and renovations
- Wall returns, suction ports, and cleaner lines
- Builders seeking clean, flush interior finishes
Not ideal for: - Vinyl liner pools
- Fiberglass pools
- Retrofits where gunite work is not being done
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I told my neighbor Charles that the Almaschool pickup location was no longer an option when I placed an online order. Charles took the time to pick it up for me (25mi further) and even dropped it off at my backyard. Thanks Charles I appreciate it very much!
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Service was good. Good communication Fast shopping. No nonsense !!!!
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FAQ
Our expert staff answers customer's most asked questions.
What is the Pentair 542423 insider fitting used for?
It provides a flush, threaded 2" connection inside gunite pool walls for returns, suction lines, or cleaner fittings.
Is the Pentair 542423 compatible with all pool types?
No, it is designed specifically for gunite pool construction and is not intended for vinyl or fiberglass pools.
When is the Pentair 542423 installed during construction?
It is installed before gunite and plaster, allowing a clean, finished connection after the pool is completed.
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