Water Softener Replacement Parts & Components by Tier1

Water Softener Replacement Components

This collection is a parts catalog for Tier1 water softeners and whole-home systems. Most components are made for the Tier1 F11693 control valve and 706 bypass valve, so they aren't universal across softener brands. Before ordering, confirm your valve model (printed on the control head) and your tank size.

Parts are grouped by where they go:

Valve parts: bypass valves, injectors, and O-rings for the F11693 control valve and 706 bypass. Injectors are sized to the tank, so choose the one listed for your system.
Tanks: fiberglass resin tanks from 9 x 48 to 12 x 52 inches, plus brine tanks and brine wells. Match the diameter and height of your existing tank.
Tubing and fittings: brine line and drain line tubing for installs and repairs.
UV and specialty parts: Viqua UV lamps and Purolite resin for systems that include UV treatment or need a resin refresh.

Common reasons to shop here include a leaking bypass valve, worn O-rings after years of service, a cracked brine tank, or resin that no longer softens effectively. Shopping for a complete system instead? See Whole Home Solutions.

Not sure which part fits? Call 1-800-277-3458 with your valve model and tank size handy.