One-time purchase:
$29.98
Subscribe & Save: Save 15%
$25.48
Other Sellers on Amazon
Add to Cart
$24.00
+ $4.87 shipping
Sold by: RELYONUS
Add to Cart
$30.62
+ Free Shipping
Sold by: MidAtlantic Merchant
Add to Cart
$26.99
+ $5.69 shipping
Sold by: WaterFiltersOnline LLC
Have one to sell? Sell on Amazon

Culligan D40 Level-4 Drinking Water Replacement Cartridge

4.2 out of 5 stars 60 customer reviews
| 5 answered questions

List Price: $39.99
Price: $29.98 & FREE Shipping on orders over $35. Details
You Save: $10.01 (25%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
9.75" H x 2.5" W x 2.5" D
  • Enter your model number above to make sure this fits.
  • Universal slim design drinking water filter cartridge
  • Fresher tasting water for drinking and cooking
  • Reduces Lindane and Atrazine, lead, mercury, Asbestos, Chlorine, bad taste and odor, and sediment reduction
  • Premium Filtration
  • For use with Culligan models US-600, US-640, SY-2000 and SY-5167
  • Recommended for use with city and well water supplies
  • 600-Gallon capacity or 6 months
  • NSF Certified
See more product details

Pay as low as $25.48 and never run out with Subscribe & Save.
Save 15% when you subscribe to regular deliveries of this item. Save 15% on your entire delivery when you subscribe to 5 or more items that arrive in the same month. No commitments, no obligations, and shipping is FREE. Learn more
38 new from $24.00

GreenWorks Snow Throwers

Frequently Bought Together

  • Culligan D40 Level-4 Drinking Water Replacement Cartridge
  • +
  • Culligan D-20A Drinking Water Replacement Cartridge
  • +
  • Culligan D-30A Level 2 Drinking Water Replacement Cartridge
Total price: $56.43
Buy the selected items together

Special Offers and Product Promotions

Size: 9.75" H x 2.5" W x 2.5" D
  • Working on a home project? Need some help? Check out Amazon Home Services and get a $20 Amazon Gift Card when you book your first service. Learn more


Product Description

Size: 9.75" H x 2.5" W x 2.5" D

Product Description

Universal slim design drinking water filter cartridge; Fresher tasting water for drinking and cooking; Reduces Lindane and Atrazine, lead, mercury, Asbestos, Chlorine, bad taste and odor, and sediment reduction.

From the Manufacturer

The Culligan D-40-D Level 4 Carbon Block Water Filter reduces Giardia, Cryptosporidium cysts, Lindane, Atrazine (a pesticide and herbicide), asbestos, and mercury. It will also reduce chlorine taste, odor, and sediment. The filter comes with a 0.5-micron (nominal) filtration and has a filter life of 6 months or 600 gallons.

Product Information

Size:9.75" H x 2.5" W x 2.5" D

Technical Details

Part Number D-40A
Item Weight 1.3 pounds
Product Dimensions 2 x 2 x 3 inches
Origin Andorra
Item model number D-40
Size 9.75" H x 2.5" W x 2.5" D
Color White
Material Carbon
Item Package Quantity 1
Batteries Required? No

Additional Information

ASIN B000CCOSL8
Customer Reviews
4.2 out of 5 stars 60 customer reviews

4.2 out of 5 stars
Best Sellers Rank #11,664 in Home Improvements (See top 100)
#18 in Patio, Lawn & Garden > Pools, Hot Tubs & Supplies > Parts & Accessories > Filters & Filter Media > Filter Cartridges & Media > Pool Filter Cartridges
Shipping Weight 12 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available July 13, 2004

Warranty & Support

Warranty, Parts:Parts
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Reviews

Top Customer Reviews

Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
If you have slow water flow before adding a Culligan under-sink filter, and don't need lead reduction, I'd recommend the D-30, which lasts 2-3 times longer, and has great flow. For the price of the D-40 you can almost buy 2 D-30's so you basically get about 4-6 times as much clean water for the price.

But if you've tested your water and it contains lead, I'd recommend this filter, because it is still great. It's just not as great for someone on a lower budget, who doesn't like to wait extra time for fresh water, like me.
Comment 16 of 17 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
I bought this with the "new" improved Culligan US-600A 3/8-Inch Undersink Drinking Water Filter from Amazon because I wanted better filtration. The 600 A comes with the Culligan D-20A filter which fits perfectly with no leaks. When I installed the D-40 filter it leaked a lot and no amount of tightening could solve it. I also tried exchanging the rubber washers at the top to no avail. The D-40 and D-20 filters look to be the same size, but the D-20 has slight indentations on the bottom that allow the filter to seat properly inside the holder. It looks like the Culligan D-40 Carbon Block Filter for $31.87 could have been the correct filter, as opposed to this $27.19 filter. I don't know. I do know that I'm out about $30 and still don't have the correct filter. YUK.
3 Comments 7 of 8 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
I have used this product in the past. It is very easy to install,and it gives me a very satisfactory drinking water with the least effort on my part, No dripping. no sediment and the price is right.
Comment 2 of 2 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
Works great, removes more than sediment & you really have some clear, clean tasting water. My coffee has never been better!
Comment 2 of 2 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
The filter is great, and the convenience of the system is fantastic for under-sink installation. I'm on an old water line with limited pressure, and the filter cuts my flow rate by 1/2. It's not a design flaw, but it is a consideration for purchase.
Comment 1 of 1 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
We have used the Culligan D40 cartridge for many years. Living in Los Angeles our water is not the best so filtration is necessary. We have not had any slow flow issues like others have commented until this last purchase. My husband replaced the cartridge like he always does, but this time the flow was down to a trickle. For a week we waited and waited to fill a glass of water from the fridge water/ice dispenser and I was so frustrated. I finally told my hubby to remove the cartridge and I was going to send it back as defective. This has never been the case with previous D40 cartridges we have replaced. They always work fine, have a normal flow and the water tastes great. As my hubby removed the cartridge he looked at the hole at the top and said, " this is way smaller than the other one", then he flipped it over and found he had installed it upside down. He put it back in the correct way and "viola", it worked perfect. Water flow was back to normal, the water was totally clear and free of any taste, and no more issues with the cartridge. So, just an FYI, make sure you are checking to make sure it is installed correctly and not upside down.
Comment Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
Excellent filtration, water taste improved dramatically. Water flow is good, but obviously it is decreased. Very happy overall with cost, shipping and performance.
Comment 1 of 1 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Size: 9.75" H x 2.5" W x 2.5" D Verified Purchase
My rating is low because of the flow rate. I previously used a D20. It flowed faster but filters less particles. Water trickles with the D40 cartridge.
Comment 1 of 1 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse

Most Recent Customer Reviews

Set up an Amazon Giveaway

Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Learn more
Culligan D40 Level-4 Drinking Water Replacement Cartridge
This item: Culligan D40 Level-4 Drinking Water Replacement Cartridge
Price: $29.98
Ships from and sold by Amazon.com
Want to discover more products? Check out these pages to see more: water pool filter d, pool filter d cartridge