Home Pool Pool & Spa Filters Sta-Rite Pool & Spa Filters Pentair Sta-Rite System:3 Modular Media Cartridge Filter | 300 sq. ft. | S7M120
NOTICE: The Texas weather emergency in February, in addition to the ongoing demand increase for pool products from the Covid pandemic, have caused industry-wide shortages on many products that most vendors expect to last late into 2021/early 2022. We're allowing items to be purchased so that customers who choose to wait will have their order shipped when product arrives. Many times there are long shipping delays on the few products we do have in stock. Please contact us to ask about availability. Live Chat and email are the best. Please keep trying back via chat and email as we can't answer them as fast as they come in but we are here, so keep trying! We're currently 20+ days behind on returning email (email is the best way to get a reply when all chat associates are busy). 

Pentair Sta-Rite System:3 Modular Media Cartridge Filter | 300 sq. ft. | S7M120

Pentair Sta-Rite System:3 Modular Media Cartridge Filter | 300 sq. ft. | S7M120 Pentair Sta-Rite System:3 Modular Media Cartridge Filter | 300 sq. ft. | S7M120
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Platinum Preferred Manufacturer
  • Quality Construction – Durable two-piece tank housing constructed of Dura-Glas™, Sta-Rite's industry leading glass-reinforced composite resin
  • Low Maintenance – Complete media coverage combined with shallow pleats means greater dirt holding capabilities, resulting in longer filter cycles and less cleaning
  • Quick Service – The shallow pleat design allows you to simply hose off the elements in a matter of minutes, making servicing a snap
  • Waterco MultiCyclone 50 Pre-Filter 2-Inch | 200375 200370
    Waterco MultiCyclone 50 Pre-Filter 2-Inch | 200375 200370


With System:3® Modular Media Filters - SM Series, Sta-Rite brings you the product that makes Ultra-Capacity Filtration a reality. No longer simply "cartridges," Sta-Rite's advanced technology has brought an entirely new class of filtration to the industry. Sta-Rite's modular media concept incorporates the latest in media science, perfectly balanced flow, and an integral manifold design: namely, Ultra-Capacity Filtration. This filtration concept puts totally care-free operation within reach of today's pool owners. Modular Filter Tanks allows for quick change of filter medias without changing the tank. Contemporary style and matte black finish looks attractive in any pool setting

An Eco Select Brand: Water flows very efficiently through System:3® Modular Media Filters - SM Series filters allowing the use of smaller pumps or lower pump speeds to minimize energy use. And when consumers rinse cartridges rather than backwash, they can significantly reduce water use, too.

  • Dual Drain Plugs Side plug available for plumbing to waste, while the bottom plug will drain entire filter
  • Safe- Posi-Lok clamps provide safe, easy access to tank internals
  • Patented Design - The patented, innovative balanced flow design first introduced with the System:3 Mod Media is still the standard of the industry. Protected by U.S. Patent Numbers 5,190,651 and 6,036,853

Brand: Pentair
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Q & A
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Browse 7 questions Browse 7 questions and 8 answers
is this a complete filter with top and gauge?
A shopper on Jun 26, 2021
BEST ANSWER: Yes. It comes with everything you need. You will love it. Easy to maintain.
do cartridge n filter as i see on screen come as one for this price ?
kenneth p on Aug 26, 2016
BEST ANSWER: Yes, cartridge and filter included as a set, don't need to order anything extra to work
Does this filter have a vacuum to waste valve?
A shopper on May 15, 2017
BEST ANSWER: No valves come with this unit; just the pressure gauge
I am replacing my old S7M120 I see the one you have on line. What else if anything would I need to replace my old one with your unit?
A shopper on Nov 16, 2015
BEST ANSWER: Nothing else is needed. The unit came complete with all needed o-rings and fittings to complete the install.
Hello, what is the weight of this filter?
A shopper on Jul 19, 2021
I have a Pentair Quad DE 60 system. Can I put non DE cartridge in system. If so which cartridge?
Peter K on Jan 31, 2021
Can you use the s7m120 on a above ground pool?
A shopper on Jun 27, 2020
4.8 / 5.0
8 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
The price was the best to be found and delivery was fast, even with the 4th of July holiday. I highly recommend this company.
July 20, 2019
over 2 years ago
Rated 5 out of 5
Heavy duty filter.I installed a Pentair pump recently and both have made my pool crystal clear.Very satisfied with your company and buying the Pentair items.
August 9, 2015
Rated 5 out of 5
Filter system replacement
This piece of equipment arrived in a very timely fashion. Earlier than expected which was great as the weather was hot and our pool was not filtering.
I was able to install the equipment easily and it seems to be working well. Just hope it continues.
June 25, 2019
over 2 years ago
Rated 5 out of 5
Great upgrade
Great price and delivery.
My water is crystal clear and looks refreshing.
September 6, 2020
11 months ago
Rated 5 out of 5
Wonderful filter
Filter arrived quickly and was packaged well. I appreciate how it comes fully assembled. It's good quality and maintains my pool the way I want it to. I recommend it.
February 4, 2015
Rated 5 out of 5
working well
Replaced an old DE filter on a gunite pool in FL
Water never looked this good!
Install was a snap!
May 21, 2018
over 3 years ago
Rated 4 out of 5
Good service good product
The price was cheaper than anywhere else I found the customer support was excellent and the product was superior
September 26, 2016
over 4 years ago
Rated 4 out of 5
Job well done
Bought a Pentair Sta-Rite System 3 modular media pool filter. Ordering was easy. But delivery was a pain because it didn’t arrive on the promised date but Isaac at PSU really helped sort things out with the trucking company for a delivery the next day. Isaac saved the day. I’m happy.
November 30, 2020
8 months ago
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Register your Pentair product online at www.pentair.com.

  • LIMITED WARRANTY: Pentair warrants its products to be free from defects in material and/or workmanship for a period of sixty (60) days (parts only) from the original date of purchase and/or installation. Customer agrees to prepay all shipping charges to Pentair.
  • EXTENDED WARRANTY: To receive a product extended warranty (longer than 60 days from the original date of installation), customer must:
  1. Register the product;
  2. Provide a copy of the sales receipt; and
  3. Provide a copy of the installation invoice, provided by the qualified installer, within 60 days of installation (if required). Certain products do not require qualified installation but still require product registration and copy of the sales receipt to receive the extended warranty.
  • TRADEGRADE WARRANTY: TradeGrade products must be purchased from a retail store (brick and mortar), pool builder or pool service company. If purchased online (via internet) the product will only receive a sixty (60) day limited warranty. View the list of TradeGrade products here.
  • ECOMMERCE (EC) WARRANTY: Products purchased from an Authorized Pentair Online Reseller receive a one (1) year (parts only) warranty from the date of purchase. The exceptions are: IntelliChlor cells and IntelliFlo SVRS pumps which receive a two (2) year warranty. EC products are not eligible for the bundled three (3) year extended warranty. To receive an eCommerce warranty, customer must:
  1. Register the product, and
  2. Provide a copy of the sales receipt
Visit www.pentair.com to submit your product warranty registration.
This information was updated on 04/05/2021. For the most current information and full warranty policy please visit www.pentair.com/warranty.

 Adobe Acrobat PDF Warranty Information
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Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in Southern California and can land most products to your door (within the 48 contiguous states) in less than a week.
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