Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Stainless Steel 40KW MF 135 Pool Heat Exchanger - Efficient Heat Recovery for Swimming Pools, Spas & Hot Tubs, Compatible with Solar Systems, Compact Design with Fixed Bracket, Corrosion & Salt Water

<ul><li>Efficient heat exchange technology transforms cold water into hot water with constant temperature circulation</li><li>High-grade stainless steel construction ensures anti-corrosion and rust resistance for long-lasting durability</li><li>Compact and lightweight design with stainless steel bracket for easy installation and space-saving</li><li>Versatile application suitable for swimming pools, spas, hot tubs, solar heating, and more</li><li>Specially designed flow limiter minimizes pressure loss and maximizes heat transfer efficiency</li></ul>

Maximum Volume Treated

Brand

Pool Heater Type

Power Type

Assembled Product Weight

Model

Feature:
1. Stainless Steel Material: The swimming pool heat exchanger is made of high grade anti corrosion stainless steel, anti rust and salt water resistance, durable.
2. Constant Temperature: It is heated by water, and the cold water is turned into hot water by heat energy, which is heated circularly. It is suitable for the simultaneous use of solar panels (shipped without solar panels).
3. Maximum Heat Exchange: Specially designed built in flow limiter aims to minimize the pressure loss in the heating system and ensure maximum heat exchange.
4. Space Save: Equipped with stainless steel fixed bracket, easy to install and use. Small and compact size, light weight. Minimum installation space is required.
5. Application: The heat recovery pool heater is suitable for swimming pools, spas, hot tubs, solar, hydraulic heating, oil cooling, heat recovery, snow melting, etc.

Specification:
Item Type: Pool Heat Exchanger
Material: Stainless Steel
Weight: Approx. 2837g/100.07oz
Size: 34.2x15.7cm/13.46x6.18in
Specifications: 40KW
Note: Does not contain electricity
Side Thread: Female Thread 45mm/1.77in
Front and Rear Thread: Female Thread 32mm/1.26in
Maximum Operating Temperature: 230℉ (110℃)
Purpose: Suitable for all types of swimming pools, spas and hot pools and spas
Type of Heat Exchanger: MF 135
Application Scenario: swimming pool, hot spring, hot tub
Swimming Pool Area: 12000 Gallon, Temperature required to rise 1 ℉/h: 100098 btu/h; Temperature required to rise 2 ℉/h: 100098
Swimming Pool Area: 14000 Gallon, Temperature required to rise 1 ℉/h: 116781 btu/h; Temperature required to rise 2 ℉/h: 133464
Swimming Pool Area: 16000 Gallon, Temperature required to rise 1 ℉/h: 133464 btu/h

How to Use:
1. First, determine the temperature rise rate of the pool water. Generally, the temperature rise of the swimming pool that is open for a long time in summer is 1 ℉ per hour (1 ℉=0, 56 ℃), while the temperature rise of the swimming pool that is only used for a short time is 20 ℉ per hour; 2. Calculate the volume of the pool (in gallons: 1 cubic meter=264,2 gallons) 
3. Check the following table, select the model of the heat exchanger according to the volume of the pool water and the required heating rate, and ensure that the output power of the boiler meets the requirements in the table; 
4. Calculate the heat loss rate to ensure that the output power of the boiler is greater than the heat loss rate calculated by the following formula: heat loss rate (btu/hour)=233,28 x The area of the swimming pool (square meter) x (the required temperature of the pool water ℃ ‑ the lowest average external temperature ℃ during use) Note: The water temperature of the swimming pool is generally required to be 26 ℃.

Package List:
4 x Part1 x Heat Exchanger
1 x Instruction 

Universal Product Code (UPC check)

fulfillment

title_shipToHome_date_free_delivery

<!DOCTYPE html>
<html>
   <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link
         rel="stylesheet"
         href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
         />
   </head>
   <body>
      <div class="flex flex-column justify-center w-100 ph3 normal lh-copy pt1">
            <div class="tc">
               <img src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg">
               <h3>4 equal payments</h3>
               <h4 class="gray">Buy what you love and split the cost. It's that easy. </h4>
            </div>
            <ul>
            <b>
               <li>Add item(s) to your cart.</li>
               <li>
                  Add items to checkout and choose 
                  <image height="14" width="auto" src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg"></image>
               </li>
               <li>Enter your debit or credit card information. </li>
               <li>Your first payment is taken when the order is processed, and the remaining 3 are automatically taken every two weeks.</li>
            </b>
            </ul>
            <p class="gray">Please note that a higher initial payment may be required for some purchases. Pay later in 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4" target="_blank">terms</a> available here. For Quebec residents, these Pay Later 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4_quebec" target="_blank">terms</a> are applicable. </p>
      </div>
   </body>
</html>