Fleck O-Ring, 015, Discontinued FL2900-NXT2-PH-SET Inspect the seal during regular

Inspect the seal during regular softener maintenance

This air injection creates a dynamic mixing environment that prevents sediment and mineral deposits from settling

It is designed to fit most standard mineral tanks but always check your tank’s specifications before purchasing

Compatible specifically with Nelsen C-Series systems for seamless integration

Fleck O-Ring, 015, Discontinued FL2900-NXT2-PH-SET Inspect the seal during regularThis Fleck O ring, size 015, is a discontinued sealing part from Pentair, listed here for reference and identification. While it is no longer offered as a current catalog item, knowing the original specification helps owners of older Fleck valves source a compatible replacement seal for their repairs. Correctly identifying the seal size is the key to restoring a tight, leak free valve, since an O ring of the wrong dimensions simply will not seal