Pentair Sta-Rite System 3 Filter Cartridge 191 sf | 25021-0202S
Pentair
SKU: 25021-0202S
Pentair 25021-0202S Cartridge
Part Number: 25021-0202S
Description
Replacement small inner cartridge for the System 3 S8M150 modular media filter. Provides approximately 191 square feet of filtration area and restores proper filter performance.
Compatibility & Fitment
- Fits System 3 S8M150 filters using the small inner cartridge specification.
- Intended for use when original cartridge shows reduced flow, high pressure, torn media, or excessive wear.
Features & Specifications
- Filtration area: approx. 191 square feet.
- Dimensions: approx. 12-5/8″ outer diameter × 29-3/8″ length.
- Designed to trap debris and fine particles to maintain clear pool water.
Installation Notes
Turn off pump and relieve system pressure. Open filter tank, remove old cartridge, inspect tank interior and gaskets, insert new cartridge ensuring correct seating, reassemble tank, restart the system and monitor pressure to confirm correct operation.
Maintenance Tip
Clean the cartridge annually or when pressure rises beyond recommended operating levels and flow falls. Replace the cartridge when hosing and soaking no longer restore acceptable flow and clarity.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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