SKU: 70844287070

AC-19313 Replacement Filter Cartridge – Fits Black Diamond 425 Quad Filter

$116.99 $129.99
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Description

AC-19313 Replacement Filter Cartridge – Fits Black Diamond 425 Quad FilterEnsure optimal filtration for your in ground pool system with the AC 19313 Replacement Filter Cartridge, designed to fit the Black Diamond 425 Quad Cartridge Filter Tank. This precision made element is one of four identical filters required for the BD 425 system, providing thorough, high capacity water filtration across all four chambers. Manufactured by Hydromatic and branded under Black Diamond Cartridge Technologies, the AC 19313 delivers

Ensure optimal filtration for your in-ground pool system with the AC-19313 Replacement Filter Cartridge, designed to fit the Black Diamond 425 Quad Cartridge Filter Tank. This precision-made element is one of four identical filters required for the BD-425 system, providing thorough, high-capacity water filtration across all four chambers.

Manufactured by Hydromatic and branded under Black Diamond Cartridge Technologies, the AC-19313 delivers exceptional durability and performance. The pleated filtration media offers maximum surface area to trap fine particles, dirt, oils, and debris—helping maintain sparkling, sanitized water throughout the swim season. Each cartridge is constructed with rugged end caps and a rigid core to prevent collapse under pressure.

Compatible System:
- Black Diamond 425 Quad Cartridge Filter Tank (In-Ground Pools)
- Requires 4 total cartridges (sold individually)

Specifications (Per Cartridge):
- Height: 25 3/5" (25.6")
- Diameter: 6 8/9" (6.89")
- Model: AC-19313
- Fits Tank Size: 43

  • OEM-grade replacement for BD-425 filter systems
  • High-efficiency pleated filter media ensures maximum dirt-holding capacity
  • Chemical- and pressure-resistant design for long-lasting use
  • Maintains flow rates and protects pump from excessive strain
  • Easy to install and clean for hassle-free maintenance

Restore your pool’s performance with the AC-19313 Replacement Cartridge—essential for the reliable operation of your Black Diamond 425 filter system. For complete system function, be sure to replace all four cartridges as needed.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70844287070

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4.1 ★★★★★
Based on 473 reviews
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alfred montes jr.
Lowell, US
★★★★★ 3
Buttons
Size: King, Color: Dark Grey
Here's what I like: Appearance. I like the color and how it looks on my bed. It looks appropriate for a king sized bed. Removable cover. It was easy to take the cover off and wash, which I appreciate because I like my bedding to smell fresh and clean. What I don't like: It is a bit softer than I would like. But I can live with it. I thought it was a foam pillow inside, not fill. Maybe my fault though for not reading description or reviews. Quality. This is the biggest issue driving the rating. I removed the over upon opening the item so I could wash it. The buttons are attached the the inside cover. When removing the outside cover, you have to unbotton them. They are not secured well at all. From what I can tell the threading goes through the inside cover through the fill to the button on the opposite side. I suspect this because 4 buttons came off when I removed the outside cover. They are very loosely secured to each other. Be gentle when removing and replacing the cover. Now I will have to thread the buttons again and secure it. Just a pain for a brand new item. Should I expect that for the cost of the item? I dunno. Could have been a higher rating, but, damn those buttons.
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Reviewed in the United States on December 21, 2025
R
Verified Purchase
Rafe Olson
Battle Creek, US
★★★★★ 5
Nicer than the pictures!
I bought this for my wife for Christmas and it’s been a game changer for watching TV in bed. I was always having to double up on pillows and having to adjust them because they’re down and kinda deflate lol. The green color is super pretty too! Quality so far has been really good!
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Reviewed in the United States on May 26, 2026
G
Verified Purchase
ginnygingin
Lake Worth, US
★★★★★ 5
Pretty, but very practical.
Size: Full, Color: Mint Green
The color was exactly what I expected from the photo. It arrived in an unbelievably small package, but expanded quickly once I opened the bag. I waited the recommended 24 hours to be sure it was done. I am pleased that the length is a perfect fit, and I like that it comes up to the back of my neck when I'm sitting in bed. It is a bit softer than I originally imagined, but not so soft that I feel like I'm sinking through it. It's very pleasantly supportive. The fabric is like a soft ribbed corduroy with piping along the outer seam. It looks nice. Both ends have a pocket that is barely noticeable, but is the perfect size to keep your phone close by. I'm temporarily homebound and spending a lot of time sitting in bed, so I'm very glad I invested in this pillow for comfort and convenience. If you ever have trouble with pillows working their way under the edge of the headboard, and into the dusty space between the headboard and the wall, consider this problem solved.
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Reviewed in the United States on January 23, 2026
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Grace Mannino
West Palm Beach, US
★★★★★ 5
Measure your bed and space, I did and ordered the perfect fit!
Size: Queen, Color: Navy
Love this wedge pillow. I bought it for our boat stateroom bed. It fits perfectly as beds on a boat are always odd sizes. It is very comfortable allows me to sit up in bed to read. Also keeps our bed pillows from sliding back. Good quality, color and size.
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Reviewed in the United States on May 12, 2026
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Verified Purchase
Vahri
Boise, US
★★★★★ 4
Comfy, Supportive, and Great for Lounging in Bed
This wedge-style headboard pillow has made sitting up in bed much more comfortable. The shape offers full upper-back support, with just the right amount of firmness to keep you propped upright without feeling stiff. It’s especially helpful for reading or watching shows in bed, and it stays in place well against a flat headboard. The purple color is rich and vibrant in person, and the removable cover is soft to the touch with a smooth finish. We really appreciated that the cover zips off easily and can be machine washed—it held its shape and color after laundering. The pillow also has a nice weight to it, so it doesn’t feel flimsy or slide down easily. This is a great addition for anyone who likes spending time sitting up in bed, whether for reading, working, or relaxing. It also doubles nicely as a decorative accent when the bed is made. The quality feels solid, and the size works well across the width of a queen bed without overwhelming the space. Id say it is ok for the price. It does retain warmth though
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Reviewed in the United States on August 1, 2025

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