Free Shipping
Free shipping on every order to the contiguous United States. Estimated delivery: 1–5 business days after you order.
Help me choose
Our tested shortlist for inground, above-ground, cordless and small pools, with what each robot does and does not include.
Find my robotFree Shipping, 30-day trial and a low price guarantee on every robot. Talk to a Pool Pro
Free Shipping and a low price guarantee on every pump. Need help sizing a pump?
Hourly water readings and personalized guidance in the ICO app, with no subscription required. Ask a Pool Pro
UV systems are sized to your pump's flow rate. Talk to a Pool Pro before you order.
Can't find a part? We can usually source any pool or spa product.
Free tools for choosing and running pool equipment. See all tools or ask a Pool Pro.
Reviews are written by our in-house pool professionals from hands-on testing. How we test
See price on Amazon
Regular price
Save
Sold out here · available on Amazon
Sold out in our store. We link to Amazon so you can still buy it; as an Amazon Associate we earn from qualifying purchases.

System:3 Modular Media Filters handle 2-3 times more dirt than other filters to deliver maintenance-free performance for up to a full season. Featuring perfectly balanced flow and an integral manifold design, these filters are engineered to deliver the ultimate in labor savings. System:3 Modular Media Filters are ideal for inground pools, inground hot tubs and water features.
An Eco Select Choice: Water flows very efficiently through System:3 Modular Media Filters 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.
Features:| Brand | Sta-Rite |
|---|---|
| Model Number | S7M120 |
| Shipping Weight | 70 lb |
|---|
Covered by the manufacturer's warranty; the term is shown on the product packaging. Every product carries the manufacturer's warranty shown on its page. Pool Express is an authorized dealer, so your warranty is valid.
Try it in your pool for 30 days. If it is not right for you, return it within 30 days of delivery for a full refund of the purchase price. You pay the return shipping. There is never a restocking fee. Full return policy
The manual ships in the box. Need a digital copy? Contact us and we will send it.
Free shipping on every order to the contiguous United States. Orders placed by 2:00 pm Central Time, Monday through Friday, ship the same business day. Orders placed later ship the next business day. Most orders arrive 1–3 business days after they ship. Allow up to 5 business days for rural addresses. Shipping details
No reviews yet. Be the first to review the Sta-Rite System 3 Modular Media Filter 300 SF S7M120.
With free shipping, a 30-day trial, and low price guarantee, we're proud to be one of the largest online retailers of all the top pool brands.