OEM Waterway 2.5-Inch Split Nut 400-5271B is a high-quality replacement component designed for securing plumbing connections on Waterway DE filter systems. Made from durable, pool-grade PVC, this nut is engineered to maintain leak-proof seals even in chemically treated and high-pressure environments. It is a standard part found in many Waterway DE filter assemblies and is built for easy installation, making it a dependable solution for both routine maintenance and long-term performance in pool and spa plumbing systems.

• Fits DE Filter Connections: Designed to provide a tight, secure fit on Waterway DE filters, ensuring consistent seal integrity and system pressure.

• Pool-Grade PVC Durability: Constructed from high-grade PVC for long-term resistance against chemical exposure, UV rays, and environmental wear.

• Standard with Waterway Filters: Included with many Waterway DE filter systems, making it a reliable replacement for existing installations.

• Fast and Simple Installation: Engineered for tool-friendly setup, allowing quick attachment without disrupting connected plumbing.

• Supports Leak-Free Operation: Helps maintain secure plumbing seals, preserving water flow efficiency and preventing system leaks.

• (1)ÊSplit Nut

• Waterway DE Filters

Find the Right Split Nut for 2.5" DE Filters

waterway 400-5271b split nut for de filter housing

2.5 inch pvc split nut for waterway de filter fittings

secure plumbing connection with 400-5271b nut

filter nut for pool or spa de filtration system

replacement nut for cracked or leaking filter joints

Maintenance and Repair Search Queries

pool filter nut cracked order 400-5271b replacement

leaking at filter union fix with split nut for de system

how to install 2.5 inch split nut for filter housing

spa de filter nut loose tighten with replacement

missing filter nut part use waterway 400-5271b

Specs and Compatibility Lookups

fits 2.5 inch waterway de filter plumbing ports

installs quickly with no pipe disassembly

pvc nut resists pool chemicals and pressure

compatible with most waterway de filtration units

used on both commercial and home pool systems