DoubleCOOL Logo

DoubleCOOL by Lippert is a specialist supplier, providing custom design, manufacturing and distribution of our innovative energy-saving door solutions. Our unique, patented, frameless solutions have received worldwide recognition and add effective contribution to a better environment. DoubleCOOL offers standardized or tailor-made solutions for both the retrofit market as well as refrigerated display cabinet producers (OEMs).

A Transparent View on Cooling

ZEUS Multi-deck Handle in Acrylic ZEUS Multi-deck Handle in Acrylic

Quick DoubleCOOL facts:

  • DoubleCOOL by Lippert is the inventor of the unique, patented cast acrylic cooling door solutions.
  • DoubleCOOL is a specialist supplier, providing custom design, manufacturing and distribution of our innovative energy-saving cooling door solutions.
  • DoubleCOOL offers standardized or tailor-made solutions for both the retrofit market as well as refrigerated display cabinet producers (OEMs).
  • DoubleCOOL doors are produced in-house from high-quality, double-pane cast acrylic PMMA (Roxite® Premium).
  • DoubleCOOL by Lippert is a trademark and part of the Polyplastic Group, which joined the Lippert family in 2020.

Why Choose DoubleCOOL by Lippert

At DoubleCOOL by Lippert, we prioritize customer satisfaction above all else. By choosing our acrylic commercial fridge doors, you benefit from:

  • Unmatched Quality

    We never compromise on quality. Our cooling door solutions undergo rigorous testing and adhere to the highest industry standards to ensure exceptional performance and durability.
  • Custom Solutions

    Every retail space is unique, and we understand that. Our team of experts will work closely with you to tailor the perfect refrigeration door solution that meets your specific needs and requirements.
  • Superior Customer Support

    We believe in building long-term relationships with our customers. Our dedicated support team is always ready to assist you throughout the entire process, from consultation to installation and beyond.
  • Energy Efficiency

    Say goodbye to sky-high energy bills! DoubleCOOL cast acrylic doors are engineered to minimize energy consumption and waste. Our doors are designed with advanced insulation technology, preserving the cold air inside your refrigeration units and significantly decreasing temperature fluctuations.
  • Environmentally Friendly

    By choosing our energy-efficient cast acrylic door solutions, you not only reduce your carbon footprint but also showcase your commitment to a greener future.
  • Optimized Shopping Experience

    Your customers deserve the best. With DoubleCOOL acrylic cooling door solutions, you can provide a consistent and comfortable shopping environment throughout your store. No more discomfort caused by sudden temperature changes. Shoppers will be delighted to browse your aisles without experiencing the inconvenience of fluctuating temperatures.
  • Industry Leader

    DoubleCOOL by Lippert is proud to be the pioneer in providing cutting-edge solutions to retailers. With our expertise and dedication to innovation, we strive to stay ahead of the competition, ensuring you receive the most advanced and reliable products available on the market.

About Us

Effective Energy Savings

DoubleCOOL cooling doors save significant energy, up to 50% compared to open cabinets. In addition to the cost-effectiveness, DoubleCOOL display fridge doors reduce food waste through better temperature distribution with the cabinets. The result is a longer shelf life and fresher, higher-quality food. As an efficient barrier, DoubleCOOL doors allow the use of environmentally friendly and highly efficient cooling technologies. With DoubleCOOL doors, it is possible to take the next step in the application of refrigeration technologies using low GWP refrigerants, such as propane and CO2.

With the unique, high-quality, lightweight, double-pane cast acrylic door solutions, condensation is a thing of the past. DoubleCOOL doors provide maximum visibility of products because the material allows more light to pass through than glass solutions. Due to the innovative design, extreme low weight and wide opening angles, the doors provide easy access and intuitive opening, giving consumers a better experience. DoubleCOOL doors can even be supplied with a transparent anti-scratch coating.

Installation in Two Minutes Per Door

Our lightweight, easy-to-handle DoubleCOOL commercial refrigeration doors come in a complete turn-key package, with user-friendly installation instructions. The fast and clean installation typically happens in two minutes per door. This means no loss of revenue due to a limitation in opening hours.

A Trusted OEM & Retrofit Partner

The main focus of the DoubleCOOL is design, production and worldwide distribution of cast acrylic door solutions. DoubleCOOL is your partner both for the retrofit market and new OEM refrigerated cabinets, wall chillers, drink fridges and walk-in coolers. The unique DoubleCOOL patented frameless solution both for retrofit and OEM manufacturers has already found worldwide recognition for energy savings up to 50% in supermarkets. DoubleCOOL by Lippert is a trademark and part of the Polyplastic Group, the global leader in lightweight, transparent rigid solutions for the mobility and retail markets. We value innovation and customer relationships. We bring services that are centered around you and your requirements, both for retrofit and OEM solutions.

Portfolio: Product Overview

DoubleCOOL has a solution for any retail space, any size. Choose from our popular retrofit and OEM models or request a custom solution. Our acrylic capabilities allow us to develop and produce any design to your exact specifications.

Zeus Multi-deck

Zeus Multi-deck

Zeus - Roll-in milk

Zeus - Roll-in milk

HERA Multi-deck

HERA Multi-deck

HERA Roll-in milk

HERA Roll-in milk

HERA Semi-vertical

HERA Semi-vertical

Olympus Multi-deck

Olympus Multi-deck

ATHENA Semi-vertical

ATHENA Semi-vertical

PEGASUS Semi-vertical

PEGASUS Semi-vertical

Choose one or multiple combinations of our doors to fully equip your space. Each model is available with a variety of options, including screenprinting treatment, handles, frames and more. You can purchase individual doors or order the complete package.

Benefits of DoubleCOOL Products

DoubleCOOL doors are a modern solution for the retail and commercial refrigeration space, offering several key advantages over traditional glass options. The design not only benefits our customer partners, but it delivers many important features for the consumer.

HERA Atlas Multi-deck Handle HERA Atlas Multi-deck Handle

Acrylic Cooling Solutions

  • Made in The Netherlands
  • Lightweight design
  • Increased safety
  • Reduced food waste
  • Energy savings up to 50%
  • Improved sustainability
  • 100% double-pane cast acrylic
  • 100% condensation-free

Benefitting Our Partners & Consumers


  • Frameless design provides maximum visibility on exposed products
  • Lightweight (7 kg) acrylic doors are easy to open compared to heavy glass doors
  • Highest transparency in the market (98%)
  • Double-pane, cast acrylic improves appearance and is 100% condensation-free


  • Reduces food waste by increasing product shelf life (expiration) up to three days
  • Up to +10% increase in sales from improved consumer shopping experience
  • Doors will not splinter and are virtually unbreakable, making them the safest solution
  • Retrofitting provides up to 50% energy savings
  • Instantly reduces energy emissions and carbon footprint
  • Sustainable materials are easy to reuse and recycle
  • Quick, easy installation (One meter every 5 to 20 minutes)
  • Door lifetime cycle is a minimum of 10 years
  • Co-engineering, testing programs and customization options available
Our Roots
Our Roots

Our Roots

A passion for acrylics made two 22 years old school friends in 1952 decide to found their own trading company for acrylic: Polyplastic. The boys first started to sell acrylic sheets, but in 1956 they started their own acrylic production.

Thanks to the excellent, unsurpassed advantages of acrylic, such as less weight, more transparency and higher stability compared to glass solutions, Polyplastic made its breakthrough in the early 1960s in the form of window systems for the caravan industry.

DoubleCOOL by Lippert was founded as a new brand in 2014 as part of Polyplastic B.V. and has since gained weight from the parent company.

For more than 70 years, customers have enjoyed the benefits of passion for design, customized focus and rich industry experience, coupled with highly-engineered machinery, short lead times, and exceptional optical and thermal performance.

Today Polyplastic B.V. and therefore also DoubleCOOL by Lippert, both Lippert brands, offer a unique combination of state-of-the-art manufacturing and contactless thermoforming technology.

The acrylic production facility is located in Tholen, Zeeland. The head office and production facility for both brands, Polyplastic by Lippert and DoubleCOOL by Lippert, are located in Rotterdam. The complete team now consists of more than 400 team members.

DoubleCOOL headquarters in Rotterdam DoubleCOOL headquarters in Rotterdam

Lippert EMEA

In 2016, Lippert™ began to focus its attention and resources in the European Caravanning Market acquiring some of the most successful companies in the industry. Headquartered in Tuscany, Italy, Lippert’s manufacturing capabilities include entry door manufacturing and lamination, bed lifts, pop up roofs for camper vans, slide-outs, table legs, TV Brackets, bike carriers, entry steps, blinds and flyscreens. Ever advancing in this market, Lippert has also expanded into The Netherlands by acquiring the Dutch Polyplastic group of entities (Jan 2020), which specialize in producing window-system solutions for the Caravanning and Equestrian industries and cooling door-system solutions for the Retail industry. Most recently, Lippert acquired the German brand Schaudt, a manufacturer of power management, battery chargers and electronic control systems. In 2023, Schaudt rebranded to Lippert.

As Lippert expanded into the European Caravanning Market, several strategic acquisitions were made in the Global Rail Industry, creating the Lippert Rail Division, manufacturing glass windows and interior furniture for trains. In the Rail Sector, Lippert’s continued focus is on highly engineered products and extensive research of innovative solutions, offering these products to vehicle owners, operators, manufacturers and refurbishers, industry subcontractors, authorities and organizations.

Lippert also made a substantial investment in the Global Marine Market with the acquisition of the Lewmar Limited group of entities, an industry leader in hardware, winches, hydraulics, windlasses, anchors, thrusters, steering systems, hatches and portlights that suits every vessel from the smallest day fisher to largest mega-yacht.

As part of Lippert, we combine our strategic manufacturing capabilities with the power of a winning team culture to deliver unparalleled customer service, award-winning innovation and premium products to every customer we do business with. With more than 12,500 team members worldwide and a diverse portfolio of premium brands, Lippert has proven time and time again that the organization's possibilities are truly endless by putting people first.

Our motto is: business as a force for good.

Request a Quote Today

Are you a supermarket owner, journalist or a frigorist handling retrofitting or an OEM? Whoever you are, if you are interested in our products, please feel free to contact us!

Request a Quote

Or call us at +31 (0)10 446 11 00.



In an interview draws Jessica Bernhardt, Team Leader "Fresh" in Marktkauf Center Weinheim, the following summary of the experiences with the new doors:

"Just great! This is not just my opinion, but also that of my colleagues and all customers. The doors even seem to be promotional products. One can almost say that the products behind the doors were awoken to a new life. Everything shines and stimulates the customer to grab and buy. Also the nice handles invite them to touch and use them. Too bad that we have taken so long to make this decision. For the future, I would support a decision for the Double Cool doors again."

“75% percent of customers said that their final buying decision is affected by visuals and display” Source: International Journal of Engineering Science and Innovative Technology (IJESIT)

“I came across Double COOL at an ACS event. Wanting to review my energy efficiency in general, they sounded like the people to help me with retro fitting doors on chiller cabinets. An excellent service right from quote to installation. Very good standards of installation. The cabinets with retro fit doors on now look better than those that had doors on originally!!” Ben Simons, Managing Director Oxring Ltd.


DoubleCOOL by Lippert
Thurledeweg 5
6044 EN Rotterdam

Frequently Asked Questions


  1. Which tools do I need for installation?
    Luckily, no heavy tool are needed to install our doors. Example link here.
  2. Are instructions included?
    Detailed installation instructions are included with each order.
  3. How long does it take to install?
    Because of the lightweight material, installing doesn’t take too long, the average installing time typically happens in two minutes per door.


  1. What is the delivery time of the doors?
    The lead time for our doors is 6 weeks.
  2. Can the doors be delivered in my country?
    DoubleCOOL has customers around the world, so that means that we can deliver our doors globally, including to your country.
  3. What if I need replacement parts?
    Our sales team is more than happy to help you with any replacement parts you might need. They will work with you directly to gather details like part numbers and quantity and ship them to you promptly.
  4. What if there is a problem with the shipment?
    If there is a problem with your shipment, please reach out using our contact form or call us.


  1. How can I place an order?
    Please send your order using our contact form, e-mail us ( or call +31 (0)10 446 11 00.
  2. What is the price per door?
    The price per door depends on the cabinet you have, and our sales team will work with you to find the right solution for your needs and budget.
  3. What if I have questions about my order?
    For questions about your order, please reach out using our contact form or call us.
  4. What if my order didn’t arrive?
    In case your order didn't arrive yet, you can always contact our team, and they will help you find out where your order is.

Door Specifications

  1. From which materials are the doors made?
    Our doors are made from cast acrylic PMMA (Roxite® Premium), and we are proud that our product, from raw material to finished door, is made in The Netherlands.
  2. What is the weight of the doors?
    Our doors are very lightweight at only 7 kg each, much lighter than traditional glass doors.
  3. What is the lifecycle of the door?
    Our door lifetime cycle is a minimum of 10 years.
  4. Do the doors discolor?
    We guarantee that our doors do not discolor. Our doors come with 10-year UV protection against fade and discoloration.


  1. What if I have a complaint?
    Please send us your feedback using our contact form or call us. We will treat every complaint with our full attention.