# iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor

Jumbo: The iSpring WSP50SL-ARJ is a whole-house spin-down sediment prefilter with a 50-micron screen, auto-flushing controls and a Siliphos scale-inhibitor addition. Its stated 25 GPM maximum flow and selectable flushing modes suit buyers looking to reduce larger particles upstream of plumbing and appliances, while the listing does not establish that it removes dissolved contaminants.

- [Original product page](https://best-deals.pro/product/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [View offer](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- Market: US
- Language: en-US
- Currency: USD
- Brand: iSpring
- Model: WSP50SL-ARJ
- Category: Tools & Garden > Electrical & Plumbing
- Price: 367.49 USD
- Previous price: 436.99 USD
- Discount: 16%
- Price checked: 2026-11-14T07:08:01.122Z
- Rating: 4.9 / 5
- Reviews: 10

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- A 50-micron screen is intended to catch larger sediment such as dirt, rust and sand before water reaches downstream equipment.
- The manufacturer describes auto, semi-auto and manual flushing, with a preset cycle of 15 seconds every 15 days.
- Siliphos is included to aid scale prevention and corrosion inhibition. The listing recommends replacing it every six months.
- Listed connections are 1-inch MNPT and 3/4-inch FNPT, so match the fitting types to the installation.

## Pros

- Auto-flushing controls offer scheduled, semi-automatic and manual operation according to the listing.
- The 50-micron screen and stated 25 GPM maximum flow address coarse whole-house sediment prefiltration.
- Siliphos adds a scale-inhibition function alongside sediment screening.

## Cons

- A 50-micron screen is for larger particulates, not a complete treatment system for dissolved contaminants.
- The listing recommends replacing the Siliphos media every six months, adding a recurring maintenance task.

## Specifications

### Identity
- Brand: iSpring
- Model: WSP50SL-ARJ
### Filtration and flow
- Screen size: 50-micron
- Maximum flow rate: 25 GPM
- Capacity: 1-gallon
- Claimed large-particulate filtration: up to 99%
### Flushing and power
- Flushing controls: Auto, semi-auto, and manual
- Flushing preset: 15 seconds every 15 days.
- Power options: Input 100-240 V, Output: 5V, 1A or AA Battery\*3
### Connections and operating range
- Inlet/outlet threads: 1-inch MNPT, 3/4-inch FNPT
- Operating temperature: 40 ºF - 100 ºF
### Dimensions and installation
- Dimensions listed: 6"D x 20"W x 8"H
- Weight listed: 15.3 pounds
### Materials and protection
- Material listed: 316L food-grade stainless steel
- External testing certification: NSF
- Lead-free certification claim: NSF/ANSI 372
### Scale inhibitor
- Scale-inhibitor media: Siliphos

## Before you buy

- Listing details are inconsistent on capacity, describing it as both 1-gallon and 110 oz. The page also describes the filter as 50-micron while listing replacement screens in several micron sizes, and gives both NSF and NSF/ANSI 372 claims without clarifying their distinct scope. Confirm the exact capacity, included screen, certification and compatible power setup for the selected listing before purchase.

## In the box

- Extra filter (Included)

## A good fit for

- Homeowners seeking a whole-house prefilter for coarse sediment in well or other source water.
- Buyers who want scheduled flushing and have compatible 1-inch MNPT or 3/4-inch FNPT plumbing connections.
- Installations where a sediment prefilter and a separate scale-inhibition media are both desired.

## Less suited to

- Anyone seeking a standalone purifier for dissolved substances or a specified drinking-water treatment outcome.
- Buyers who cannot accommodate the listed dimensions or the recommended six-month Siliphos replacement.

## Customer feedback

The available aggregate ratings lean strongly positive, with ratings concentrated in the top two star categories. That is a limited signal from a small rating sample and offers no specific explanation of customer experience. For a system with scheduled flushing and six-month Siliphos replacement guidance, check that the maintenance routine and installation details fit your needs.

## Frequently asked questions

### What does the 50-micron screen target?
The listing describes it as filtering larger particulates such as sediment, dirt, rust and sand. It does not establish removal of dissolved contaminants.
### Does the unit flush automatically?
The product information describes auto, semi-auto and manual flushing. It lists a preset cycle of 15 seconds every 15 days, with other schedules adjustable through the touchscreen.
### How often should the Siliphos be replaced?
The listing recommends replacing the scale-inhibitor media every six months to help prevent scale buildup.
### What should I verify about size and plumbing before ordering?
The listed connections are 1-inch MNPT and 3/4-inch FNPT. Check those against your plumbing and confirm the listed capacity, since the page gives both 1-gallon and 110 oz.

## Alternative options

- [iSpring WSP50ARB Big Spin Down Sediment Filter, Sediment Buster, 50 Micron \| Whole House Water Prefilter for Well Water, Auto Flushing Module, 316L Stainless Steel Mesh, Built-In Scraper, Brass Top](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [SimPure Whole House Water Filter System 3-Stage 20" \*4.5" Pre-Filtration \| Reduces Chlorine, Sediment, Rust, Unpleasant Tastes & Odors \| MPP, GAC & CTO Filtration \| 1" NPT Brass Connections](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [Waterdrop G2P600 Under-Sink RO System, 600 GPD Tankless Water Filtration \| 7 Stage RO Water Filtration, NSF/ANSI 372 Certified, 2:1 Pure to Drain, TDS Reduction, Under-Sink Reverse Osmosis System](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [Waterdrop BG103 Mega Spin Down Sediment Filter, 500 + 200 Micron \| Upgraded Reusable Backwash Whole House Water Filter System for City/Well Water, 1" MNPT + 3/4" FNPT, BPA Free](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring RCC7AK-BN NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink Patented Top-Mounted Faucet Design for Easy Installation](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring F28K75 NSF Certified 3-Year Replacement Set for 6-Stage Reverse Osmosis RO Systems with Alkaline Mineral Filter, 28 Pieces, White](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring RCC7-BN NSF Certified, High Capacity Under Sink 5-Stage Reverse Osmosis Water Filter, RO Drinking System, 75 GPD Brushed Nickel Faucet, Patented Top-Mounted Faucet Design for Easy Installation](https://best-deals.pro/visit/ispring-rcc7-bn-5-stage-under-sink-ro-system)
- [iSpring RO500AK Alkaline Reverse Osmosis System, NSF 58 Certified, 500 GPD \| Under Sink Tankless RO Water Filter, Fill 8 oz in 10 s, 2:1 Low Drain Ratio, TDS PFAS Reduction, Auto Flush, Filter Reminder](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring RCS10T Tankless Reverse Osmosis System, 1000 GPD, 5-Stage \| 2.5:1 Pure-to-Drain Ratio, Built-In Booster Pump, for Residential and Light Commercial Use](https://best-deals.pro/visit/ispring-rcs10t-tankless-reverse-osmosis-system)
- [iSpring Greatwell Reverse Osmosis Membrane 100 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC1](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [Waterdrop BG102 Mega Spin Down Sediment Filter, 50 + 100 Micron Filter \| Upgraded Reusable Backwash Whole House Water Filter System for City/Well Water, 1" MNPT + 3/4" FNPT, BPA Free](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring UVF8 LED UV Water Filter for Under Sink Water Filter & RO Systems \| Add-on Under Sink Kit, Mercury-Free, Stainless Steel, Reduce Up to 99.9% of Baçtёria, Auto On/Off Switch, Up to 10 Years Life](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)

## Add-ons

- [iSpring UVF55FS Whole House UV Water Filter, 1" MNPT Inlet/Outlet, 12 GPM \| 55W, Whole House Ultraviolet Water Purifier Filter, Chemical-free, with Flow Sensor & Auto On/Off Switch](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)
- [iSpring WGB32BM Iron, Manganese Whole House Water Filter System \| Reduces Iron, Manganese, Chlorine, Sediment, Taste and Odor, 1-Inch Inlet/Outlet, Lasts up to 12 Months or 100K Gallons](https://best-deals.pro/visit/ispring-wsp50sl-arj-jumbo-spin-down-sediment-filter)

## Images

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 1](https://best-deals.pro/i/yLxE2_62Aa-LDksD780NQj6IACG3mUu3regKrVhV9SiPc8pmAiRzKyvC7zT2uFRWe5wBBZ6ZmnMFqO9TctMeFM9pLUQsP27AAgVT8emlcrYGg9-FOo25-bHV.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 2](https://best-deals.pro/i/MAdSIKelk3BaXPflJMiUp65_Vjw5N-IdsJLF84hJqZBZrWH_7nAhlFVds6HA-hLfumf5hy7JAc-1XWa9WaPhPrvsCpBCOYWee3mcadxkEm1AEH-ovcuo_WVG.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 3](https://best-deals.pro/i/kJlM6D8CJDAbSX8HIGjC9rK4IOzxyBpkVoDCvS9V3wVpLh4XOjdadof68X7ziQlzE71lLbMzGPAB2mcKQymGMlouZ4kX_Oqs5e0S0dSfnBDwV_zSj1m0mRiv.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 4](https://best-deals.pro/i/pE_L7ryKJ3L79ysjCfjYrAYp_uCEdqiYTI2qIZ_F9V4d5Q1kb8NV0zDeU7KMoBDUja84xGJYnOcX5HseTEF3MM2lGoeEQqUEZBZc_nBbhunTXG9Czdof8ks7.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 5](https://best-deals.pro/i/0zp42JKe-DG71Sljl9FR_dx_mMj_fUWATCyX43zuNFmM5Znbfn_DOw-wIijLNZGGhQWvS_CtxAdKud75coxA7evPvTsLE0Ies1ab8jUDh86lKqDaZRRhBov9.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 6](https://best-deals.pro/i/P-OpRXQOZbMaRqc9FLZWA04SMBkcCntdUd8npktR4tsOs1jcdRAtaz9tgjckB2KUPgXCanpYPGEfAimyLSY_9wIQoyWfa-gEC9Wf5P5jz2LSRb8p1AFzOBeJ.jpg)

![iSpring WSP50SL-ARJ Jumbo Spin-Down Sediment Filter and Scale Inhibitor — 7](https://best-deals.pro/i/vMLA1Jd0tyogpRMryF48QhHWjmJyp35FLPtWhBGbtRNfX8rlV1l0atrvx6GVK9BM6JgR-dMKmv1j0q5uN630Ulh5MqrJfq1rgQxJ4OZ2DrTXRdxA0F2e4lfO.jpg)