SJ-77-W INABA DENKO Duct Coupler for SLIMDUCT SD-77 (white)
€2.03 Incl. VAT
INABA DENKO SJ-77-W duct coupler provides a neat connection between SLIMDUCT SD-77 straight lineset cover sections. Designed as a decorative lineset cover coupler, it helps create a continuous SLIMDUCT SD trunking system for concealing and protecting air conditioner and heat pump refrigerant pipework.
- Fast delivery across Europe (5-10 business days)
- 30-day returns
- No customs duties within the EU
- Secure payments
INABA DENKO SJ-77-W Duct Coupler for White SD-77 Lineset Cover
INABA DENKO SJ-77-W duct coupler connects adjoining SLIMDUCT SD-77 straight duct sections to create a continuous and visually consistent decorative lineset cover system. Designed for air conditioning and heat pump installations, it allows longer trunking runs to be assembled while maintaining a neat finish around concealed refrigerant pipework.
The SJ-77-W forms part of the INABA DENKO SLIMDUCT SD trunking system and provides a practical connection point between two SD-77 duct sections. A screw-fixed cover secures the coupler in place, with two stainless steel screws supplied for installation.
Its durable UV- and water-resistant PVC construction makes the white duct connector suitable for indoor and outdoor use. When installed between matching SLIMDUCT SD-77 sections, the coupler helps maintain a unified appearance while the complete trunking system conceals and protects refrigerant pipes, cables and condensate drain lines.
KEY FEATURES
- Lineset cover coupler for SLIMDUCT SD-77 straight ducts
- Connects adjoining duct sections to extend the trunking system
- Creates a continuous decorative lineset cover system for refrigerant pipework
- Helps maintain a neat, unified appearance across longer duct runs
- Complete trunking system helps conceal and protect refrigerant pipes, cables and drain lines
- Part of the SLIMDUCT SD White
- Screw-fixed cover for a secure connection
- Supplied with 2 stainless steel screws
- Durable PVC construction
- UV-resistant and water-resistant
- Suitable for indoor and outdoor installation
- Operating temperature: −20 °C to +60 °C
- Colour: White (RAL 9003)
- Easy to install
- Made in Thailand
DIMENSIONS

APPLICATIONS
The SJ-77-W duct coupler is designed for joining SLIMDUCT SD-77 straight lineset cover sections in air conditioning and heat pump installations, providing a clean and continuous connection between adjacent ducts.
Used with SD-77 straight ducts and compatible SLIMDUCT SD fittings, it forms part of a modular decorative trunking system for concealing and protecting refrigerant pipes, condensate drain lines and electrical cables in residential and commercial HVAC installations.
MORE ABOUT SLIMDUCT SD
SLIMDUCT SD Trunking System Catalogue
| Weight | 0.075 kg |
|---|---|
| Dimensions | 230 × 70 × 130 mm |
Related products
SC-77-K INABA DENKO trunking vertical elbow 90° (Black)
SD-77-K INABA DENKO SLIMDUCT SD Lineset Cover 2 m (black)
INABA DENKO SLIMDUCT SD-77-K lineset cover for air conditioners and heat pumps conceals and protects refrigerant pipes, condensate drain lines and electrical cables. The 2 m black decorative lineset cover is made from UV-resistant PVC and integrates with the SLIMDUCT SD trunking system for indoor and outdoor HVAC installations.
SD-77-W INABA DENKO SLIMDUCT SD Lineset Cover 2 m (white)
INABA DENKO SLIMDUCT SD-77-W lineset cover for air conditioners and heat pumps conceals and protects refrigerant pipes, condensate drain lines and electrical cables. Made from UV-resistant PVC, the 2 m white decorative lineset cover integrates with the SLIMDUCT SD trunking system for indoor and outdoor HVAC installations.
SJ-77-A INABA DENKO Duct Coupler for SLIMDUCT SD-77 (anthracite grey)
INABA DENKO SJ-77-A duct coupler joins SLIMDUCT SD-77 straight ducts into a continuous refrigerant pipe covering route. This anthracite grey decorative lineset cover coupler integrates with the SLIMDUCT SD trunking system, providing a neat connection for indoor and outdoor air conditioning and heat pump installations.
SK-77-I INABA DENKO trunking flat elbow 90° (Ivory)
Inaba Denko SK-77-I trunking flat elbow 90° is a high-quality PVC pipe fitting designed for modern and professional HVAC line set installations. Ideal for sharp 90-degree horizontal turns, it ensures seamless routing of refrigerant pipes in heat pump and air conditioning systems while offering UV-resistant, weatherproof protection.









