Culligan D-40A Under Sink Water Filter Replacement, Superior Filtration
Culligan D-40A Under Sink Water Filter Replacement, Superior Filtration
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Culligan D-40A Under Sink Water Filter Replacement, Superior Filtration

4.9 stars out of 27 reviews
(4.9)|
27 ratings

Key item features

  • Universal Compatibility: Easily fits inside the Culligan Filtration System US-600A and is compatible with most other under sink filtration systems.
  • Lead and Microplastics Reduction: Reduces lead and microplastics for healthier water and improved taste.
  • Improved Taste and Odor: Reduces contaminants like chlorine for better tasting and smelling water.
  • Premium Quality Filtration: Activated carbon filter tested and certified by IAMPO to reduce lead, microplastics, chlorine, asbestos, atrazine, mercury, and turbidity.
  • Long-lasting Performance: Lasts up to 6 months or 600 gallons with a flow rate of 0.6 gallons per minute.
  • Easy Installation: Comes with step-by-step instructions for a hassle-free setup under your sink.
  • Cost-effective Solution: Helps save on water bills by reducing the need for single-use plastic water bottles.
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Columbus, 43215
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4.3924050632911396 stars out of 5, based on 79 seller reviews(4.4)
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Customer ratings & reviews

4.9 out of 5 stars
stars27 ratings19 reviews
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Pros
  • : Offers affordable options.
Neutral
  • : Can be straightforward, but may require additional parts.
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Showing 1-3 of 19 reviews

Oct 31, 2025
Larry
Item details
Color: White
Multipack quantity: 1
Sold byRummageTXDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great quality and price for pure water!

I have a two stage under-sink generic (standard 2" x 10" filter cartridge) filter for drinking and cooking. I've been using the Culligan D40A for years as my second stage. My water is better quality than any bottled water in taste and measurements of impurities which has convinced many friends and family members to install a filtering system. What blew me away was the price for this filter cartridge; unbeatable! The 600 gallon usage is also great and I've installed a small water meter to keep tabs on it. I highly recommend this product.

Incentivized Review
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Aug 12, 2025
Reba
Item details
Color: White
Multipack quantity: 1
Sold byPack N Track LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

The delivery was very quick. Product is one we have used for a long time. That is why we ordered new ones.

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Jan 3, 2026
Rebecca
Item details
Color: White
Multipack quantity: 1
Sold byWichita Emporium, LLCDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Very good filter!

Very good quality product! Great value on the best tasting water! Easy to install and you won't regret the taste of the water quality you get!

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Helpful?4PV1G7LEUFTL15552350