1in Dual Solar Line Set 82 ft Solar Hot Water Piping Stainless Steel


Presenting an impressive solution to your piping requirements, this 164 feet total pipe length (82 feet each pipe) is configured with a 1″ flexible size. European-manufactured, it possesses an R-Value of 4.8 for optimal insulation. The pipe comes pre-insulated and equipped with a UV protection layer to withstand harsh sunlight. Furthermore, a thermostat wire is incorporated in the insulation jacket for effortless temperature management. As an NSF listed stainless steel pipe, it assures safety for drinking water.

SKU: FlowMaxx-MP-IDL-82FT-1IN-3/4IN-CSS Category:

How to order? 

  • Order online or contact sales team directly
  • 24-hour online order confirmation
  • SunMaxx Solar™: solar hot water equipment manufacturer
  • Availability and production lead times subject to production queue

Direct-from-Manufacturer Pricing

Experience the value and benefits of our manufacturer-direct pricing on all online listings. For wholesale and distribution inquiries, we encourage you to reach out to our office to receive a tailored offer that meets your needs.

Looking to connect with our office? Give us a call at 1-877-786-6299, and we'll be happy to assist you!


Product Description Perfect for solar hot water system installations, the 1″ FlowMaxx™ Dual IDL Stainless Steel Flexible Lineset streamlines the process of connecting hot and cold lines of the solar loop. Its design simplicity enhances the efficiency of installation and ensures limited lifetime maintenance.


  • Pipe Diameter: 1″ (DN25)
  • Insulation Thickness: 3/4″, R – 4.8
  • Pipe Length: 82 feet (roll) 2X pipes (164 feet in total length)
  • Recommend Flow Rate: 4 – 11 GPM
  • Sensor Wire: Included 16 gauge sensor wire (2 conductors), runs entire length of piping
  • Weight: 69lbs
  • Shipping Dimensions: 2.5ft (L) x 2.5ft (W) x 2.5ft (H)
  • Packaging Details: Piping is in a roll, wrapped with recycled plastic wrap / cardboard box.
  • Origin: Made in Europe, by SunMaxx Solar

Product Highlights

This FlowMaxx™ Lineset stands out for its dual functionality, allowing for the connection of both hot and cold lines of the solar loop simultaneously. With an insulation thickness of 3/4″, it offers optimal protection and enhances energy efficiency.

Utilizing this FlowMaxx™ Dual IDL Stainless Steel Flexible Lineset for your solar hot water installations not only accelerates the process but also curbs unnecessary expenses tied to system maintenance.

Advantages of FlowMaxx™ Flexible Stainless Steel Piping

SunMaxx FlowMaxx™ series stainless steel flexible piping saves time and money when installing hydronic or solar thermal systems.
  • Suitable for all hydronic heating & cooling applications
  • Stainless steel piping NSF listed: suitable for drinking water
  • Easy click and go reusable line set connectors
  • Save time & money with reduced installation costs (reduce cost and maintenance of solar thermal systems)

How does it work?

Simple plug and play FlowMaxx series.

Plan piping path of where you want to run your pre-insulated piping


Install line set clamps (for supporting piping)

Recommend every 24 – 36″ (vertical 36″, horizontal 24″)

Mount piping in line set piping support


Install couplings (if required)

If required, install line set couplings when joining two sections of line set together.

Install lineset connectors

Install connects to transition from the stainless steel piping to your existing building piping or equipment (tank, pumps, etc).

What parts & accessories do I need?

Universal fittings (for FlowMaxx series piping). Easy to stock in your tech-van, less parts to inventory.

Technical Details

FlowMaxx™ dual IDL stainless steel flexible lineset is perfect for solar hot water system installations. Each roll includes an insulated dual run of lineset allowing for connection of the hot and cold lines of the solar loop. The simplicity of the design allows for a faster, more cost-effective solar installation and limited lifetime maintenance of the system.

  • Pipe Diameter: 1″ (DN25)
  • Insulation Thickness: 3/4″ R – 4.8
  • Pipe length: 82 feet (roll) 2X pipes (164 feet in total length)
  • Recommend Flow Rate: 4 – 11 GPM 
  • Sensor wire: Included 16 gauge sensor wire (2 conductors), runs entire length of piping
  • Weight: 69lbs
  • Shipping Dimensions: 2.5ft (L) x 2.5ft (W) x 2.5ft (H)
  • Packaging Details: Piping is in a roll, wrapped with recycled plastic wrap / cardboard box. 
  • Manufactured by SunMaxx Solar
  • Made in Europe
Flexible lineset is perfect solution for solar piping system. It has a lot of advantages, which make it better from other.Flexibility - all to make connection in every directions, suitable for every surface. Easy installation form in domestic or residential systems.Insulation - Pipe is insulated, you don't have to buy extra insulation and waste time on it.Sensor wire is included in a piping system covered by insulationEvery lineset has dual piping with insulation and sensor wire. Moreover it fully recommended for Solar SunMaxx system and guarantee the optimal connection to the solar collectors. In our offer there are three sizes of lineset  5/8", 3/4" and 1". For more information please contact us.
In our offer we have three sizes of dual line set in pipe diameter 5/8", 3/4" or 1".  Lineset diameter depends on a size of the whole installation (number of collector or banks). For small domestic systems usually we are using 5/8" that it is the best solutions for this type. For larger system 3/4" or 1" diameter will be better to optimize the whole system. If you want to choose the right size, you can contact the engineering team. they will definitely  help you to make a right decision.
The length of lineset depends on a factor like size of installation or how far is from solar collector to the solar tank. Linesets are sold in one length 82 ft. This package includes dual lineset where each have a 82 ft length. Usually this is a optimal solution for solar system. If you need a longer connection you can add an extra lineset and connect them using the stainless steel piping coupling. Remember that couplings are sell  in lineset sizes and they have to fit to a right lineset. 
  • NSF/ANSI 61 Compliant (stainless steel piping) Pending IAPMO Listing* EN 10204 3.1: DIN 1.4404
  • ASTM A312 & ASTM D792 method tested

Product Replacement Warranty: 5 year

Extended system warranty available upon request when using all SunMaxx Solar components installed by a certified SunMaxx installer.

Why SunMaxx Solar

Investing in a complete solar hot water kit from a single manufacturer is essential for ensuring the longevity and efficiency of your solar hot water system. A streamlined approach to sourcing components simplifies the process of installation, maintenance, and servicing.

By choosing a single manufacturer for your solar hot water kit, you can benefit from comprehensive documentation for service and maintenance. This approach helps prevent issues arising from improperly installed or maintained systems. Studies show that over 60% of solar hot water systems fail due to incorrect installation or lack of proper maintenance.

Purchasing a complete kit from one manufacturer guarantees compatibility between components and streamlined support from the provider. This ensures that you have access to knowledgeable experts who can address any concerns or questions related to your specific system. Furthermore, a single manufacturer can provide a unified warranty, eliminating the need to deal with multiple companies in case of any issues.

In summary, investing in a complete solar hot water kit from a single manufacturer is a wise decision for homeowners and businesses alike. It ensures smooth installation, proper maintenance, and reliable long-term performance, maximizing the return on your investment and providing a sustainable hot water solution.