This is an index of replacement parts organised by the model number they are listed under, built so that you can start from the number on your equipment rather than from a product description. Each entry shows the part number alongside the item, so an order can be placed against a number rather than a description.
Choose the family your equipment belongs to. Within each page, parts are grouped by the model number that appears in the product's own title, and sorted by part number.
- Fleck Valve Parts by Model Number — 167 parts
- Autotrol Valve Parts by Model Number — 32 parts
- C-Series Valve Parts by Part Number — 75 parts
- Pentek and Pentair Filter Parts by Model Number — 108 parts
- Stenner Pump Parts by Model Number — 41 parts
- Tank and Air-Injection Parts by Model Number — 27 parts
- UV System Lamps and Sleeves by Model Number — 24 parts
Why this index is organised by number
Most water treatment parts are ordered wrongly for the same reason: they are searched for by description. A description like "the black piston for a softener valve" matches a dozen components that are not interchangeable, while a single part number matches exactly one. Every valve, pump, housing and tank we stock carries a number somewhere on it, and that number is the shortest path to the correct replacement.
The difficulty is that the number is not always where you expect. On control valves it is moulded into the body or printed on a label beneath the cover. On filter housings it is on the sump or around the cap. On feed pumps it is on the motor housing, and it encodes both the feed rate and the supply voltage. On tanks there is often no model number at all — only two dimensions, diameter and height, which together do the same job.
What this index covers, and what it does not
It covers the equipment families we hold replacement stock for, which is where a number-first lookup actually saves time. It does not attempt to list every item in the catalogue, and it is not a manufacturer cross-reference: we do not claim that a part listed under one model is interchangeable with another manufacturer's equivalent. Where you need that kind of confirmation, the part number printed on the component you are removing is the authority, not this page.
Complete systems are not listed here. This index is for the parts that get replaced during the life of a system — the seals, pistons, tubes, lamps, boards and cartridges — rather than for the systems themselves, which are organised by what they treat rather than by what they are made from.
Working out which family you have
If you do not already know the make, the control valve is the fastest thing to identify, because it is the component that carries a name badge and sits at the top of the tank where it can be seen. Feed pumps and ultraviolet units are usually labelled clearly on the housing. Tanks and filter housings are the awkward ones, since they often carry no maker's name at all and have to be identified by size instead.
Where a system was assembled by an installer from components rather than bought as a finished unit — which is common on well water — expect the valve, the tank and any feed pump to come from three different makers. There is no single model number covering the whole installation, and each part has to be identified on its own.
If the number has worn away
The part number on any component you have already removed is the next best starting point, and it is often more reliable than the system plate because it identifies exactly one thing rather than a family. Failing that, send us the numbers you can still read together with a photograph of the unit, and we will identify it rather than guess.
A note on prices and availability
Prices shown throughout these indexes are current at the time each page was generated, and the product page itself is always the authority. Shipping within the United States is included in the price. Where an item is part of a complete system that is sold on request rather than directly, the individual parts remain available to order in the normal way.
Manuals for this equipment
Installation and programming manuals are available as free PDF downloads: Fleck manuals, Nelsen manuals, Pentair manuals, VIQUA manuals, Watts manuals, Genesis manuals, Water Softener Plus manuals.