Pentair 51008400 Spider Gasket Replacement 1-1/2-Inch Side Mount Multiport

Pentair 51008400 Spider Gasket Replacement – 1-1/2-Inch Side Mount Multiport Valves

Keep your pool filter system operating at peak efficiency with the Pentair 51008400 Spider Gasket. This genuine replacement part is engineered for a precise fit in select Pentair side mount multiport valves, ensuring a reliable seal and smooth valve operation.

✅ Key Features:

• Genuine Pentair factory replacement part
• Designed for 1-1/2-inch side mount multiport valves
• Maintains a watertight seal between valve ports for optimal filtration
• Durable, chemical-resistant materials for long service life
• Easy installation – fits select Pentair and compatible multiport valves

🔄 Compatible With:

• Pentair 261055, 261185, 261173, and similar 1-1/2-inch side mount multiport valves
• Commonly used on Pentair Tagelus, Sand Dollar, and other sand filter models
• Replaces part numbers: 51008400, O-392, SPX0710XD, and comparable gaskets from other brands

🛠️ Replacement Instructions:

• Turn off pump and relieve system pressure before servicing
• Remove valve cover screws and lift off valve cover
• Gently remove old spider gasket, clean groove, and press new gasket firmly in place
• Reassemble valve and ensure proper alignment

⚠️ Tip: A worn or damaged spider gasket can cause water leaks between valve ports and poor filtration performance. Replace at the first sign of wear for best results.

This OEM Pentair spider gasket is trusted by pool professionals for reliable repairs and long-lasting performance. Perfect for DIY maintenance or professional service calls.