Pentair Sta-Rite System 3 Filter Cartridge 100 sf | 25021-0200S
Pentair
SKU: 25021-0200S
Pentair 25021-0200S Inner Cartridge – 100 sq ft
Part Number: 25021-0200S
Description
A high-quality replacement inner cartridge offering approximately 100 square feet of filtration area, designed for use in the System 3 modular media filter family.
Compatibility & Fitment
- Fits the Pentair/Sta-Rite System 3 S7M120 filter model.
- Intended for use when the original cartridge shows signs of wear, reduced flow, elevated pressure, or visible media damage.
- Direct replacement for cartridges that require the 25021-0200S geometry.
Features & Specifications
- Filtration area: approx. 100 sq ft.
- Outer diameter: about 8 ⅝″ (≈ 8.5″) according to specifications.
- Length: about 25 ¼″.
- Top cap: closed style; bottom cap: open style.
- Media construction: pleated polyester (OEM spec) for improved dirt-holding and ease of cleaning.
Installation Notes
Turn off the pump and relieve system pressure. Open the filter tank and remove the old cartridge. Clean the interior of the tank and inspect gaskets or seals. Install the new 25021-0200S cartridge, ensuring correct orientation and seating. Reassemble the filter, restore flow, and monitor system pressure to confirm proper operation.
Maintenance Tip
Rinse the cartridge regularly during its service life. If cleaning no longer restores acceptable flow-rate or pressure drop, or the media pleats show wear or damage, replace the cartridge to maintain optimal system performance.
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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