The Pentair 178816 Drain Plug with O-Ring is a factory-original replacement component engineered for Pentair FullFloXF 4000 Series, C Series, and F Series filter systems. This package pairs a sturdy drain plug with a precision-fit O-ring to form a secure, watertight closure at the drain port, which is essential for preserving filtration efficiency and preventing unwanted water loss. The drain plug enables convenient tank draining during cleaning and sand or cartridge service, ensuring proper water management throughout the maintenance process. Designed for exact compatibility with the FullFloXF product line, both components are manufactured from heavy-duty materials that withstand the physical and chemical demands of pool environments. The O-ring delivers a tight, gap-free seal that guards against drips and seepage.

Key Benefits

• Secure and Leak-Free Fit: The drain plug and O-ring combination forms a watertight closure at the drain port, preserving system pressure and protecting filtration performance from water loss.
• Facilitates Easy Maintenance: Enables controlled draining of the filter tank during cleaning or media replacement, allowing for efficient water management and faster service turnaround.
• High Compatibility: Precision-engineered for Pentair FullFloXF 4000 Series, C Series, and F Series filters, this factory-original part delivers guaranteed dimensional accuracy and reliable integration.
• Durable Construction: Both the drain plug and O-ring are produced from premium materials selected for their resistance to chemical exposure, pressure stress, and prolonged submersion in pool water.
• Prevents Leaks: The accompanying O-ring provides a firm, continuous seal around the drain port, eliminating potential drip points and maintaining the overall effectiveness of your filtration system.

What's Included

• Pentair 178816 Drain Plugs

Compatibility

• Pentair FullFloXF 4000 Series Filters
• Pentair FullFloXF C Series Filters
• Pentair FullFloXF F Series Filters

Specifications

• Brand: Pentair
• Part Number: 178816

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