By Hayward Pool Products
Part # 4820-21
Manufacturer Code ECX1251
Dimensions 15" L x 15" W x 19" D
Hayward® Flex Tube Nest Assembly – ECX1251 (Perflex EC65 / EC65A)
The ECX1251 Flex Tube Nest Assembly is the direct replacement core for Hayward’s Perflex EC65 and EC65A Extended-Cycle D.E. Filters. Designed to restore full filtration efficiency, this complete assembly delivers the performance and durability required for crystal-clear water.
Key Features
Restores Original Filter Performance – Replaces worn or damaged flex tubes to maintain optimal water clarity
Advanced Flex-Tube Design – Maximizes D.E. contact and filtration surface area
Efficient Cleaning – Engineered for effective backwashing and easy debris release
Included in Assembly
Top and bottom tube sheets
Five 13⅜″ flex tubes
Shaft, washers, O-rings, clips, bump handle hardware
Complete set of replacement parts for full nest rebuild
Compatibility
Fits Hayward Perflex EC65 and EC65A D.E. Filters
Specifications
Model: ECX1251
Tube Length: 13⅜″
Weight: Approx. 11.4 lbs
Shipping Dimensions: Approx. 16.5″ x 17.5″ x 19″
When to Replace
Reduced water flow or short filter cycles
D.E. returning to pool
Tubes showing visible wear or over 4 years old
Warranty
6-Month Limited Warranty (Parts Only)
For the Flex Tube Nest Ec65 (ECX1251), I noticed at the bottom of your parts listing, the asterisk indicates that the #14 washers are not included? Is this true?
Thanks,
Bob
Reply
Hi Bob, I did a little more research on this and the Flex Tube Nest Ec65 (ECX1251) does include the key #14 washers. The kit includes items 5 and 13-23 we will update our page to reflect this information, thank you for bringing it to our attention.
Reply
My Hayward EC65 DE Filter is 36 years old. I cleaned the filter bags with acid last year. I am not getting the volume of water going back into the pool the last few years as before.. The water box on the inlet to the pump is full and no air bubbles seen. Is there a better way to clean the filter fingers or do they need replacing? Please help
Reply
Hello. I best recommend replacing the Flex Tube Nest Ec65 or replacing the entire unit Perflex DE Filter 27 Sq. Ft. If prefer to try cleaning them one more time you may like to try the Filter Cleaner 1 Qt. This product is specially formulated for removing body oils, dirt and soap scum.
Reply
Do you ship to Austria or is there a distributer in Austria or Germany?
How can I replace the check valve ?
Kind Regards
Werner
Reply
Hi, This part can be shipped to Austria. You will have to contact Hayward to find out if this part is available in Austria or Germany. The Check Valve slides out of the tank inlet port.
Reply
