Pentair 170147 large and small cartridge filter pack for the Sta-Rite System:3 S8M150Pentair Sta-Rite S8M150 Large and Small Cartridge Filter Pack 25021-0202S & 25022-0203S, 170147 In stock$79199
Pentair 170147 large and small cartridge filter pack for the Sta-Rite System:3 S8M150
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Pentair Sta-Rite S8M150 Large and Small Cartridge Filter Pack 25021-0202S & 25022-0203S, 170147

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$79199
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Quick overview

  • Both cartridges in one pack the large outer 25022-0203S and the small inner 25021-0202S.
  • Fits the S8M150 the Sta-Rite System:3 modular media filter rated at 259 sq ft.
  • Genuine Pentair the manufacturer replacement set, part 170147.
  • One part number order 170147 rather than two separate cartridges.
  • Restores flow replace the set when a cleaning no longer brings the filter pressure back down.
  • Look at the tank o-ring with the tank open, a worn o-ring is quick to replace and avoids a second teardown.
Full description and specifications ↓

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Product details

The Pentair 170147 is the complete replacement cartridge pack for the Sta-Rite System:3 S8M150 modular media filter. It pairs the large outer cartridge, 25022-0203S, with the small inner cartridge, 25021-0202S, so one order refreshes the whole filter.

Made for the S8M150

The S8M150 is the 259 sq ft System:3 filter. Its two cartridges nest inside one another, and this pack supplies both in the correct sizes.

When to replace

Cartridges are cleaned many times before they are done, but eventually a hose down no longer brings the starting pressure back to where it was, or the pleats tear and collapse. That is the point to fit a new set. Because the two cartridges age together, most owners replace both at once.

Before you order

Confirm your filter is the S8M150. While the tank is open, check the tank o-ring, the drain plug and the air bleeder so you only open it once.

Specifications
Brand Pentair
Manufacturer part number 170147
UPC 788379886066
Type Cartridge filter pack, large and small
Large outer cartridge 25022-0203S
Small inner cartridge 25021-0202S
Fits Sta-Rite System:3 S8M150 modular media filter
Filter area 259 sq ft
Shipping weight 50 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What is in the pack?
Two cartridges: the large outer cartridge, Pentair 25022-0203S, and the small inner cartridge, Pentair 25021-0202S. Together they are part number 170147.
Which filter does it fit?
The Sta-Rite System:3 S8M150 modular media filter, the 259 sq ft model.
Can I buy just the outer cartridge?
This listing is the complete pack. The large outer cartridge is also sold on its own under 25022-0203S if you only need that one.
When should the cartridges be replaced?
When a thorough cleaning no longer brings the starting pressure back to normal, or when the pleats are torn, collapsed or permanently stained. Most S8M150 owners replace both together.
Ask your own question