# Hayward 1-4 inch hex nut w-washer for tank bolt | Pool Supply World

**Manufacturer:** Hayward  
**MPN:** `ECX1645`

The Hayward D.E.CX1645 is a 1/4-Inch-20 hex nut replacement with washer, designed for Hayward Perflex and Sand Filter models, including the S240, S200, I_PFPPTs, EC75A, and EC50C80X5S. It features a size of 1/4-Inch-20 and includes washers for secure installation. Weighing 13.9 pounds, this replacement nut is a direct fit for specified Hayward models, ensuring reliable operation and minimizing downtime.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Hayward |
| Manufacturer name | Hayward |
| Manufacturer | Hayward |
| Extra Product Name | Hayward 1-4 inch hex nut w-washer for tank bolt \| Pool Supply World |
| moq | 1 |
| MPN | ECX1645 |
| multiple | 1 |
| qtyInStock | -2 |
| SKU | 402936 |
| tierMinQty1 | 1 |
| tierPrice1 | 2.99 |
| ASIN | B004YLJAES, B006H4BQDS, B0082N0EP8 |
| AdultProduct | False |
| Asin | B004YLJAES, B006H4BQDS, B0082N0EP8 |
| Autographed | False |
| Batteries_required | False |
| Brand | Hayward |
| ClassificationId | 10304191, 1273009011, 16310161 |
| DisplayName | Categories, Sand Pool Filters |
| Height | 1600, 182, 240, 500, 61, 75 |
| ItemClassification | BASE_PRODUCT |
| ItemName | Hayward ECX1645 1/4" Hex Nut W/Washer, Hayward S240 Sand Filter Series Replacement 1/4" - 20 Hex. Nut w/Washer ECX1645, Hex Nut With Washer |
| Item_name | Hayward ECX1645 1/4" Hex Nut W/Washer, Hayward S240 Sand Filter Series Replacement 1/4" - 20 Hex. Nut w/Washer ECX1645, Hex Nut With Washer |
| Item_package_quantity | 1 |
| Item_type_keyword | other-products, outdoor-and-patio-products, swimming-pool-sand-filters |
| Item_weight | 0.01, 1.0 |
| Keyword | ECX1645 |
| Label | Hayward |
| Link | https://m.media-amazon.com/images/I/21jmGBoVhoL._SL75_.jpg, https://m.media-amazon.com/images/I/21jmGBoVhoL.jpg, https://m.media-amazon.com/images/I/31+MMpD3wiS._SL75_.jpg, https://m.media-amazon.com/ |
| Material | Sand |
| MaterialType | Sand |
| Memorabilia | False |
| Model | ECX1645 |
| ModelNumber | ECX1645 |
| Mpns | ECX1645 |
| PackageQuantity | 1 |
| PartNumber | ECX1645 |
| Part_number | ECX1645 |
| ProductCategoryId | 1273009011, lawn_and_garden_display_on_website |
| ProductGroup | BISS Basic, Lawn & Patio, Single Detail Page Misc |
| ProductType | MISC_OTHER, NUTS, OUTDOOR_LIVING |
| ProductTypeName | MISC_OTHER, NUTS, OUTDOOR_LIVING |
| Product_description | Hayward S240 Sand Filter Series Replacement 1/4" - 20 Hex. Nut w/Washer, The Hex Nut With Washer is manufactured by Hayward Pool Products, Inc. and has the part number of ECX1645 / ECX1645 |
| Product_site_launch_date | 2012-06-02T01:12:51.245Z |
| Publisher | Hayward |
| Rank | 1491704, 190, 322159, 446 |
| StrippedMpns | ECX1645 |
| Studio | Hayward |
| Supplier_declared_dg_hz_regulation | unknown |
| Title | Hayward ECX1645 1/4" Hex Nut W/Washer, Hayward S240 Sand Filter Series Replacement 1/4" - 20 Hex. Nut w/Washer ECX1645, Hex Nut With Washer, Patio, Lawn & Garden, Sand Pool Filters |
| TradeInEligible | False |
| URL | https://m.media-amazon.com/images/I/21jmGBoVhoL._SL75_.jpg, https://m.media-amazon.com/images/I/31BsWta2qVL._SL75_.jpg, https://m.media-amazon.com/images/I/41sJ-VTnCXS._SL75_.jpg |
| Unit | ounces, pounds |
| Units | pixels, pounds |
| Variant | MAIN, PT01, PT02, PT03, PT04 |
| WebsiteDisplayGroup | biss_basic_display_on_website, lawn_and_garden_display_on_website, sdp_misc_display_on_website |
| WebsiteDisplayGroupName | BISS Basic, Lawn & Patio, Single Detail Page Misc |
| Weight | 0.00, 0.000625, 1.0, 1.00 |
| Width | 1600, 225, 240, 500, 75 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Pool Supply World | 402936 | 2.99 | 1 | None | 1 |
| hottubworks.com | 402936 | 2.77 | 1 | None | 1 |
| lesliespool.com | 402936 | 3.99 | 1 | None | 1 |
| sunplay.com | ECX1645 | 5.39 | 1 | None | 1 |
| poolweb.com | ECX1645 | 2.99 | 1 | 26 | 1 |
| getpoolparts.com | ECX1645 | 3.58 | 1 | None | 1 |

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Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp