Search  for anything...

Culligan S1A Whole House Standard Water Filter Cartridge, 20 Micron, 16,000 Gallons, 2-Pack – Reduces Sediment, Rust, Scale, Sand, and Silt – Compatible with HF-150A, HF-160, HF-360A, HF-365

Based on 2,265 reviews
Condition: New
Checking for the best price...
$9.05
Holiday Deal · 6% off was $9.65

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Nov 15 – Nov 16
Order within 12 hours and 46 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Size
2 Count (Pack of 1)
Model
S1A
Dimensions
6"D x 10"W x 3"H
Weight
6.24 oz
Material
Paper
Set Name
10" x 2.5"
In the box
Culligan S1A Whole House Standard Water Filter

Features 5

  • Powerful Sediment Filtration: 20-micron pleated cellulose design reduces rust, scale, dirt, coarse sand, and silt to improve water clarity and protect household plumbing.
  • Extended Filter Life: Each cartridge lasts up to 16,000 gallons or 4 months, depending on water qualityideal for reducing frequent replacements.
  • Compatible with Standard Housings: Designed for use with Culligan HF-150A, HF-160, HF-360A, WH-S200-C, and most standard 10 filter housings.
  • Protects Appliances & Fixtures: Reduces sediment buildup that can damage water heaters, dishwashers, and faucets, extending their lifespan and efficiency.

Description

The S1A Basic Whole House filter from Culligan helps reduce sediment, rust, scale, dirt, coarse sand, and sand from your water supply. This leaves your water visibly cleaner and tasting better. The Culligan S1A sediment water filter replacement cartridge lasts up to 4 months or 16,000 gallons, providing your home with higher quality water that will not only be better for drinking, but will also help protect appliances and plumbing from sediment and scale. With a 20-micron rating and pleated paper, this filter is NOT recommended for use with untreated well water. The filter is NSF certified and includes a 2-year warranty and change reminder sticker. From the Manufacturer The Culligan S1A 2 pack whole house sediment water filter replacement cartridge filters scale, rust particles, sand, dirt, & silt for basic filtration. The filter life is 4 months or 16,000 gallons. The filter has a 20 micron rating, pleated paper, For use with model HF-150, HF-160, HF-360 and most standard size sediment filters. The filter is NSF Certified and a 2 year warranty. It also includes a change reminder sticker.

Specs 20

Material Paper
Product Dimensions 6"D x 10"W x 3"H
Item Weight 6.24 ounces
External Testing Certification WQA, ANSI
Product Benefits 16,000 Gallon Life, 2-Pack, 20 Micron Filtration, Pleated Cellulose, Reduces Sediment & Rust
Model Number S1A
Brand Name Culligan
Number of Packs 2

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 15 – Nov 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Great Purchase
Size: 4 Count (Pack of 1)
We use these for our filtration of wheel water to the house. We have used this brand for 3 years and it keeps the water filtered and clean. Fit perfect.
Reviewed in the United States on November 15, 2025 by Amazon Customer

Great filtration
Size: 4 Count (Pack of 1)
These are great filters. Can't find them locally for some reason. I was shocked to see how much crud is in my spring water.
Reviewed in the United States on November 16, 2025 by mtn16165

Excellent filters at a good price!
Size: 4 Count (Pack of 1)
My favorite filters. Work well and were delivered right on time. Thanks.
Reviewed in the United States on July 9, 2025 by cyp

Home well filter
Size: 4 Count (Pack of 1)
Filters our well water very efficiently. Easy to replace.
Reviewed in the United States on September 7, 2025 by Zork3

Culligan P5-4PK P5 Water Filter quality & price
Size: 4 Count (Pack of 1)
Culligan P5-4PK P5 Whole House Premium Water Filter quality holds up; water does taste better definitely works better than off-brand filter I tried.
Reviewed in the United States on September 26, 2025 by jbug

It stops the dirt
Size: 4 Count (Pack of 1)
It's a filter and does what it was built for. I use it for a whole house filter and it works.
Reviewed in the United States on August 1, 2025 by Garden Lady

Filter the water perfectly
Size: 4 Count (Pack of 1)
These filters are the best! They absorb well, fit the filter holder perfectly and last a whole month. We won’t ever be without them
Reviewed in the United States on November 3, 2025 by kenphy

Convenience
Size: 4 Count (Pack of 1)
Good product for price uand convenience.
Reviewed in the United States on September 18, 2025 by Carolyn Lloyd
Checking for best price...