Yes and no. There are 2 versions of this product on Amazon. One includes Siliphos granules. Siliphos is a descaling agent.

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iSpring WSP-50SL Reusable Whole House Spin Down Sediment Water Filter Softener, Includes Siliphos Helps Prevent Scale and Corrosion, 1" MNPT + 3/4" FNPT, 50 Micron

iSpring WSP-50SL Reusable Whole House Spin Down Sediment Water Filter Softener, Includes Siliphos Helps Prevent Scale and Corrosion, 1" MNPT + 3/4" FNPT, 50 Micron

Q: Where can I buy the replacement siliphos for this filter system?

I don't see any replacement filters for this item. How can I purchase one?

Q: Can this be used as a post filter for an inline water heater?

Hi, Yes you can use the spin down filter as a post filter after an inline water heater but the spin down filter may be best used before the water heater to protect the water heater from sediment buildup. Thank you, iSpring Water Systems LLC

Q: Does it matter what direction this is hooked up?

Yes! If you look on the side of the filter housing at the top you will see an arrow pointing the direction of flow.

Product ID: 255025676

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Details

Material
Brass
Product dimensions
5.1D x 8.9W x
Item weight
453 Grams
External testing certification
REACH
Product benefits
Prolongs life

🔄Flushable & reusable design

⚙️50 Micron precision filtration

🛠️Dual-thread easy installation

Frequently Bought Together

iSpring WSP-50SL Reusable Whole House Spin Down Sediment Water Filter Softener, Includes Siliphos Helps Prevent Scale and Corrosion, 1" MNPT + 3/4" FNPT, 50 Micron

iSpring WGB21B 2-Stage Whole House Water Filtration System, with 10" x 4.5" Sediment CTO(Chlorine, Taste, and Odor) Filter, 1" Inlet/Outlet

Description

💧 Elevate your home’s water game with smart, sustainable filtration!

USER FRIENDLY INSTALLATION - Dual-threaded 1" MNPT + 3/4" FNPT fittings with garden hose flush valve for quick, hassle-free setup.
FLUSHABLE REUSABLE CARTRIDGE - Reduce maintenance costs and extend the life of downstream filters with effortless cleaning.
PRECISION 50 MICRON FILTRATION - Captures sediment, rust, dirt & sand before finer filters, protecting your whole house system.
SILIPHOS SCALE CORROSION DEFENSE - Innovative Siliphos formula softens water, preventing scale buildup and corrosion to safeguard plumbing.
TRANSPARENT HOUSING FOR INSTANT MONITORING - See sediment buildup in real-time and know exactly when it’s time to flush or replace.

The iSpring WSP-50SL is a reusable whole house spin down sediment filter featuring 50 micron precision filtration to trap large particles like rust and sand. It includes Siliphos to prevent scale and corrosion, extending plumbing life. Designed for easy installation with dual-thread fittings and a transparent housing for visual monitoring, this indoor filter supports water softening and protects finer filtration systems downstream.

Specifications

Manufacturer	ispring water systems
Part number	WSP-50SL
Item Weight	453 g
Product Dimensions	8.89 x 5.08 x 22.86 cm; 453 g
Item model number	WSP-SL
Size	1 Count (Pack of 1)
Color	Brass
Style	50 micron
Finish	Brass
Material	Brass
Item Package Quantity	1
Number Of Pieces	1
Number of Handles	1
Included components	Water filtration system, filter cartridge, installation manual, parts
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Where can I buy the replacement siliphos for this filter system?

does it descale

Can this be used as a post filter for an inline water heater?

Does it matter what direction this is hooked up?

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