SKU SD-77 Categories , , Tags , , , , Brand:
lineset cover
SKU SD-77 Categories , , Tags , , , , Brand:

SD Straight Duct Lineset Cover

The Slimduct SD Straight Duct neatly covers exposed linesets mounted on walls, providing a clean, professional appearance. Ideal for protecting and organizing piping in residential applications.

The Slimduct SD Straight Duct is a high-quality lineset cover and comes with a professional finish. It conceals refrigerant piping, drain lines, and communication wires along the exterior walls of residential and commercial buildings. This streamlined duct system boosts both protection and curb appeal.

Built from high-grade, weather-resistant PVC, the Slimduct SD Straight Duct resists UV rays, rain, snow, and extreme temperatures. Its durable construction prevents cracking, fading, and impact damage, helping preserve the integrity of the lineset insulation. 

By protecting critical components from weather and pests, this lineset cover helps extend the life of your HVAC system and provide a stable performance across diverse climates. That’s what makes it perfect for residential and commercial buildings across North America. 

Request distributor quote

Product Features

Year-Round Protection

The Slimduct SD Straight Duct is constructed from high-grade, UV-resistant, and flame-retardant PVC. This Slimduct SD Straight Duct delivers dependable protection against weather exposure, physical contact, and pests, keeping your HVAC line sets safe in every season.

Excellent Curb Appeal

Featuring a sleek gloss finish available in white, ivory, brown, and black, the Slimduct SD Straight Duct system enhances exterior aesthetics and blends smoothly with any residential or commercial building design.

Easy to Install

The top cover clips firmly onto the base, while stainless steel screws secure all fittings for a fast, stable, and professional HVAC installation, no special tools required.

Designed to Perform

Each Slimduct SD Straight Duct measures 78-3/4″ in length and is engineered to perform reliably within a temperature range of –4°F to 140°F, ensuring long-term durability in diverse climates.

  • Premium Protection: Constructed from high-grade UV-resistant and flame-retardant PVC, it provides line set protection from damage caused by weather, physical contact, and pests.
  • Aesthetic Mini Split Lineset Cover: The gloss finish comes in four colors: white, ivory, brown, and black to complement the aesthetics of any residential or commercial building.
  • Easy Assembly: The straight duct cover clips to the top of the base tightly. The additional fitting tops are secured with stainless steel screws, allowing for a quick, easy and secure assembly.
  • Temperature Range: – 4°F to 140°F
  • Length: 78-3/4″
Code No.Item No.ABCDEPcs/Bundle
C 0402SD-773″2-1/2″2-3/8″2-3/8″3″15
C 0403SD-1004″2-7/8″3-1/2″3-1/2″4″10
C 0404SD-1405-1/2″3-1/4″4-7/8″4-7/8″5-3/8″5
Slimduct SD BrochureSlimduct Instruction ManualSlimduct SD SpecsSlimduct SD Cross ReferenceSlimduct SD Test Report

Q. What kind of caulking agent should I use with the Slimduct SD Straight Duct?

A. Use a silicone caulking with a strong UV resistance to protect your system from weather damage.

Q. What measurements can I use as a reference when cutting the Slimduct SD Straight Duct?

A. The center of the Slimduct SD Straight Duct screw fitting hole (half-open hole) is positioned at 100 mm, or approximately 4 inches, with both ends at about 55 mm, or 2 inches.

Q. What are the available sizes of the Slimduct SD Straight Duct?

A. The Slimduct SD Straight Duct comes in three sizes: 3 inches, 4 inches, and 5-1/2 inches to accommodate different HVAC line set requirements.

Q. Can the Slimduct SD Straight Duct also be used indoors?

A. Yes, it integrates seamlessly into indoor environments and keeps a professional look.

Q. How can I mount the Slimduct SD Straight Duct on a wall?

A. Use the right hardware depending on your wall material or substrate to provide a secure and stable installation. It’s best to hire a professional if you’re not sure what to do.

Q. Can the Slimduct SD Straight Duct be used with the Slimduct PD series?

A. Yes, you can connect it to the Slimduct PD series using the PD-SD Coupler (PSDR).

Q. Can I use the Slimduct SD Straight Duct to protect items other than air conditioning pipes?

A. It can protect other types of piping when installed as directed by the Instruction Manual.

Q. Can I use the Slimduct SD Straight Duct for other applications besides linesets?

A. You can use it to organize or protect other items, like electrical wires, provided you follow the installation and product guidelines.

Q. Do I need special tools to install the Slimduct SD Straight Duct?

A. While you don’t need special tools to install the Slimduct SD Straight Duct, it’s better to hire a professional. They have the right skills and training to install HVAC systems.

Q. What is the best tool for making a straight cut on the Slimduct SD Straight Duct?

A. Use the Slimduct Cutter, which is designed to make precise, clean cuts on the Slimduct SD Straight Duct.

Q. Can I install the Slimduct SD Straight Duct with another company’s lineset cover?

A. It’s best to use only Inaba Denko products together. The product warranty does not cover installations that include components from other manufacturers.

Q. My Slimduct SD Straight Duct installed outdoors has deformed. What should I do?

A. Deformation can occur from excessive heat or insufficient internal support for horizontal installations. Check the Instruction Manual for proper installation methods and preventive measures.

Q. What are the protrusions inside the Slimduct SD Straight Duct connectors like SW and SK?

A. These protrusions, or pins, fit into cover holes to prevent slipping in vertical setups. If not required, you can remove them.

Why Choose Inaba Denko America

Choosing Inaba Denko America means partnering with a company that blends Japanese precision with North American support. Every product, including the Slimduct SD Straight Duct, reflects decades of engineering expertise and a dedication to reliable HVAC performance.

Japanese Engineering

With roots dating back to 1938 in Japan, Inaba Denko has now built a global reputation for precision engineering and product reliability.

Reliable Customer Support

Inaba Denko America provides responsive support across North America, helping distributors and HVAC contractors with product selection, installation, and technical inquiries.

High-Quality Products

Each component is crafted for durability and accuracy. The Slimduct SD Straight Duct is one of many products offering consistent protection for demanding HVAC applications.

Innovation at Its Best

Our design team continues to advance installation technology and material performance, making every product more efficient, highly durable, and easier to install.

Best Used for

The Slimduct SD Straight Duct is best for protecting and concealing refrigerant piping, drain lines, and communication cables in mini split, VRF, and unitary heat pump installations. It helps you organize lines along exterior walls, providing a functional and visually appealing solution.

Engineered for outdoor durability, the Slimduct SD Straight Duct performs well in diverse North American climates where exposure to sun, rain, and temperature changes is common. Its rigid PVC construction prevents damage and wear, making it an excellent long-term investment.

Protect Your HVAC Systems with Confidence

Choose the Slimduct SD Straight Duct for reliable protection and a refined finish that lasts. Contact one of our sales representatives today to find a distributor near you and bring top-quality HVAC accessories to your next project.

Talk to An Expert

You May Also Be Interested In

SW Wall Inlet

SW Wall Inlet

The Slimduct SD Wall Inlet protects linesets as they enter exterior walls, shielding them from...

flat ell

SK 90° Flat Ell

The Slimduct SD 90° Flat Ell guides linesets around 90° turns on exterior sidewalls. Made...

lineset

Paircoil Lineset

Pre-paired and pre-insulated copper linesets for fast, efficient installs. Flexible annealed copper with durable insulation....

AP Sealant Putty

AP Sealant Putty

Flexible, moldable putty for airtight, waterproof seals around ducts, wires, and pipes. Boosts efficiency and...

Our Support

Frequently Asked Questions

Our Support to Distributors

View Technical Library