DPM Swimming Pool DE Hayward Filter DE4820 Grid Replacement Set Pro Grid Made in USA 7 Large +1 Partial Replacement for DEX4800DA DEX4800DS PG-1904 FC-9440 FC-9340 FG-1004 (48 Sq Ft (24 inch Height))

These filters work great, fit perfectly ,easy to install. I would highly recommend , the pool water is crystal clear now. Very well made and made here in the USA.

These filters work great ,easy to install and our pool water is crystal clear now. I highly recommend (USA made)

I have to two important things to say about this product: 1) It fit perfectly. 2) It shipped and arrived quickly.

Product was exactly as it claimed to be and at a reasonable price.

Direct fit and it is working great. 1 month so far and no issues .

My previous filter grids were in bad shape; there were some small holes on the grid fabric & DE and algae were getting back in the pool. These grids were a good price, although not the cheapest. The info stated that the grids were made in the USA, so I paid the extra little bit on the price, to keep jobs in America, and support American workers. The other grids were made off-shore, so I wasn't sure how they would hold up for several seasons (Texas has HOT summers, and we run the pumps all year long). Hopefully these filter grids will hold up well - - time will tell, and I will update my review. I changed the filter grids yesterday, and the pool is already looking much better already. Water is much clearer, and the algae blooms appear to gone after 2 lbs of Shock, and new DE media in the filter.

Third time bought...easy to installEasy to install. Well made. 3rd time bought

Ugh. Forgot to take pictures but the quality is great and they work as advertised.Install was easy after watching a YouTube video (tip, start with the base and small filter three slots from the right opening)Filters did not come with any instructions.