SKU: 4936817128

PENTAIR HD ASME HEATER 400K BTU-NATURAL - 461021

Sale price$2032.04 Regular price$2257.82
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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

PENTAIR HD ASME HEATER 400K BTU-NATURAL - 461021The Pentair MasterTemp 400 ASME Heavy Duty Natural Gas Heater delivers commercial grade performance that pool contractors trust for large scale installations. With 400,000 BTU capacity and ASME certification, this heater handles pools and spas up to 50,000 gallons with exceptional reliability and efficiency. Commercial Application Benefits Engineered for demanding commercial environments, this heater features a cupro nickel heat exchanger that resists

The Pentair MasterTemp 400 ASME Heavy Duty Natural Gas Heater delivers commercial-grade performance that pool contractors trust for large-scale installations. With 400,000 BTU capacity and ASME certification, this heater handles pools and spas up to 50,000 gallons with exceptional reliability and efficiency.

Commercial Application Benefits

Engineered for demanding commercial environments, this heater features a cupro-nickel heat exchanger that resists corrosion and extends service life, reducing costly maintenance calls. The advanced ignition control module ensures consistent gas control and reliable startups, while the bronze header design simplifies maintenance procedures for service technicians. With up to 84% efficiency and 120 GPM flow rate, contractors can deliver faster heat-up times and lower operating costs to their commercial clients.

Why Pool Contractors Choose MT Pools

MT Pools understands the demands of commercial pool projects. Our superior customer service includes expert technical support, reliable inventory management, and wholesale pricing that protects your profit margins. With our daily recurring customer support, you get the partnership you need to keep large projects on schedule and within budget.

Frequently Asked Questions

What size pools can the MasterTemp 400 ASME handle?

The MasterTemp 400 ASME is designed for commercial pools and spas up to 50,000 gallons, making it ideal for hotels, resorts, and large residential installations.

Why is ASME certification important for commercial installations?

ASME certification ensures the heater meets strict commercial safety standards and building codes, providing contractors with confidence for commercial projects and regulatory compliance.

What makes the cupro-nickel heat exchanger superior?

Cupro-nickel construction provides exceptional corrosion resistance and durability compared to standard materials, extending equipment life and reducing maintenance costs for commercial applications.

Does MT Pools provide installation support for commercial projects?

Yes, MT Pools offers expert technical guidance and support for professional installation requirements, ensuring proper setup and warranty compliance for commercial contractors.

Order Your Commercial Heater Today

Join the pool contractors who rely on MT Pools for their commercial heating solutions. Our team provides the technical expertise and wholesale pricing you need for successful large-scale projects.

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: 4936817128

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4.1 ★★★★★
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EGee
Fort Morgan, US
★★★★★ 5
If you have a Cricut you need this
Style: Starter Bundle
Just what I needed to compliment my Cricut system. Works great, colors are perfect, set up was a breeze, connected to my wireless instantly. Prints look prefect, not all wonky like some can. Value pack was definitely worth the extra $50.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
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Ninfa Velásquez
Lexington, US
★★★★★ 5
Mi impresora
Style: Starter Bundle
I am very happy with my printer. The print quality is excellent; the colors are vibrant, and the details look crisp. That said, I must admit that I have faced a few challenges when adjusting the tones, but I believe that with a little more practice, I will master them. Overall, it is an investment I highly recommend for anyone looking to get started in the world of sublimation.
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Reviewed in the United States on May 6, 2026
B
Verified Purchase
Barefoot Quilter
Cuba, US
★★★★★ 5
Prints beautifully
Style: Starter Bundle
Prints sublimation prints perfectly. Colors are bold and vibrant. The first printer I used was an inkjet that I converted to sublimation. Wish I’d gotten this one first. It’s a world of difference compared to the print quality. So easy to download the drivers to your computer. The printer setup is extremely easy, just follow the prompts. Then, just click and print. Paper tray doesn’t hold a lot, but then again you don’t want too much paper to sit in the paper tray, because it starts to curl around the edge if left to sit out too long. Depending on how much graphics you are printing determines the speed of printing.
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Reviewed in the United States on December 1, 2025
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Verified Purchase
Str8up INC.
Charlottesville, US
★★★★★ 1
No good
Style: Starter Bundle
Item is no good. Couldn’t even get it to print steady. It was always blurry. I sent it back.
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Reviewed in the United States on June 9, 2026
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Marisol
Draper, US
★★★★★ 5
Great product
Style: Starter Bundle
It works perfectly ,easy to use It is not too slow printing but I would like a faster speed printing , it is very functional for what I am using for
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Reviewed in the United States on January 6, 2026

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