SJ-77-K INABA DENKO Coupler for SLIMDUCT SD-77 (black)
€2.99 Incl. VAT
INABA DENKO SJ-77-K duct coupler connects SLIMDUCT SD-77 lineset cover to extend a continuous decorative lineset cover for air conditioner and heat pump pipework. The black lineset cover coupler forms part of the SLIMDUCT SD trunking system and features UV- and water-resistant PVC construction for indoor and outdoor installation.
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INABA DENKO SJ-77-K Duct Coupler for black SD-77 Lineset Cover
INABA DENKO SJ-77-K duct coupler provides a secure connection between SLIMDUCT SD-77 straight duct sections, allowing the decorative lineset cover system to be extended across longer refrigerant pipe runs. Its black finish creates a clean, unified appearance for air conditioning and heat pump installations where exposed HVAC services need to be concealed.
Designed as part of the INABA DENKO SLIMDUCT SD trunking system, the SJ-77-K joins adjacent SD-77 ducts while maintaining a continuous exterior finish. The screw-fixed cover provides a secure assembly, and two stainless steel screws are included for installation.
Manufactured from durable UV- and water-resistant PVC, the black duct connector is suitable for indoor and outdoor applications. Combined with matching SLIMDUCT SD components, it contributes to a protective trunking system that keeps refrigerant pipes, condensate drainage and cables neatly covered and organised.
KEY FEATURES
- Duct coupler for SLIMDUCT SD-77 lineset cover
- Connects two straight duct sections for extended installation runs
- Creates a continuous decorative trunking system for refrigerant pipework
- Helps achieve a clean and unified finish between adjoining lineset covers
- Complete system helps conceal and protect refrigerant pipes, cables and drain lines
- Screw-fixed cover for secure installation
- Includes 2 stainless steel screws
- Material: PVC
- UV-resistant
- Water-resistant
- Suitable for indoor and outdoor installation
- Operating temperature: −20 °C to +60 °C
- Colour: Black
- Easy to install
- Made in Thailand
DIMENSIONS

APPLICATIONS
The SJ-77-K lineset cover connector is designed for extending SLIMDUCT SD-77 straight duct installations where multiple sections are required to cover longer pipe routes. It provides a practical connection while preserving the consistent appearance of the black decorative trunking.
Suitable for air conditioner and heat pump installations, the coupler can be used as part of a complete SLIMDUCT SD system for covering and protecting insulated refrigerant pipes, condensate drain lines, electrical cables and other HVAC service lines in residential and commercial applications.
| Weight | 0.075 kg |
|---|---|
| Dimensions | 230 × 70 × 130 mm |
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