Pentair Junction Box Brass Base w/ Polycarbonate Cover | 78310700

Description

Pentair 78310700Pool Light / Spa Light Junction Box (Polycarbonate Cover & Brass Base)

The Pentair 78310700 is a junction box designed for pool and spa lighting systems. It provides a waterproof, code-compliant enclosure where low-voltage wires from underwater lights are connected to the main power supplymaking it an essential component for safe, reliable pool lighting installations or repairs.

Key Features

• Durable brass base and UV-resistant polycarbonate coverbuilt for long-term exposure to pool chemicals, water spray, and sunlight.
• Port configuration:1inlets / outletsfits standard conduit and flexible conduit fittings used in pool / spa light wiring.
• Comes with gasket, cover-screws, and built-in strain reliefensures a watertight, electrically safe seal.
• Meets electrical-safety standards for pool lighting enclosures (suitable for installations requiring compliance with pool & spa wiring codes).
• Compact and weather-tightideal for retrofit jobs or replacing aging junction boxes during pool remodels or light upgrades.

Specifications

• Manufacturer: Pentair Pool & Spa
• Part Number: 78310700
• Type: Light junction box (for pool / spa underwater light wiring)
• Base Material: Brass (corrosion-resistant)
• Cover Material: Black polycarbonate (UV- and chemical-resistant)
• Ports:1conduit ports
• Includes: Brass base, polycarbonate cover, gasket, cover screws, internal strain-relief fittings
• Typical Dimensions: ~644 (box size)suitable for most pool light wiring runs and splices

When & Why to Use

Use the 78310700 junction box when installing new underwater pool lights, replacing a cracked or leaking existing light junction box, or upgrading old components to meet current safety standards. A proper junction box helps protect wiring from water intrusion, keeps connections dry, and reduces the risk of electrical hazardsessential for pool-side lighting reliability and safety compliance.

Installation & Maintenance Tips

• Always de-energize and lock out power before servicing or installing the junction box.
• Use conduit fittings and PVC or flexible conduit appropriate for pool-side exposure; tighten ports with approved fittings to maintain waterproof seal.
• Ensure the cover gasket is clean and properly seated before tightening cover screwsreplace gasket if cracked or degraded.
• Inspect box periodically for corrosion, cracking, or water intrusionespecially before pool opening or after winter. Replace if any part shows signs of deterioration.