Pentair Filter Cartridge Replacement 100 sf | R173215

Pentair SKU: R173215
Pentair Filter Cartridge Replacement 100 sf | R173215 - Cartridges - img - 1
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Pentair Filter Cartridge Replacement 100 sf | R173215

Pentair SKU: R173215
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Pentair R173215 100 sq ft Replacement Cartridge Element

The Pentair R173215 is a high-quality replacement cartridge filter element rated at 100 square feet of media area. It is designed for compatibility with select Pentair Clean & Clear and Predator filter tanks and restores proper filtration efficiency and flow performance.

Key Features

  • 100 sq ft media area provides long run times between cleanings.
  • Constructed to fit compatible filter tanks with an approximate diameter of 10 1/16″ and a length of about 23 5/8″.
  • Direct replacement cartridge element for select filter models.
  • Helps maintain clean, clear water and captures fine debris efficiently.

Technical Specifications

  • Part Number: R173215
  • Media Area: 100 sq ft
  • Approx. Dimensions: 10 1/16″ diameter × 23 5/8″ length
  • Compatible Filters: Pentair Clean & Clear 100, Predator 100 and similar models

Installation & Compatibility Notes

Shut off the pump and relieve pressure before opening the filter housing. Remove the old element, clean the tank interior, and install the new cartridge ensuring it seats correctly on the manifold or base. Reassemble the tank, restore system flow and verify proper operation. Monitor the pressure gauge to establish a clean baseline reading.

Maintenance Tips

  • When filter pressure rises 8–10 psi above the clean baseline, inspect or clean the cartridge.
  • Rinse the element with a hose during routine maintenance; replace when fabric frays, collapses or no longer cleans effectively.
  • Keep replacement cartridges on hand to reduce downtime during service calls or seasonal maintenance.

Why Choose This Element?

The Pentair R173215 provides reliable, OEM-quality filtration performance for compatible filter tanks. Using the correct cartridge helps maintain strong circulation, clear water and long-term system efficiency while preventing bypass and debris recirculation.

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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