12 ft Ductless Mini Split Line Cover Kit — 3" Width(75 mm) Line-Set Concealment
Give your ductless mini-split or HVAC installation a clean, finished, professional appearance. The Hercules LSDK75 Smart Duct Installation Kit conceals and protects the refrigerant copper, control wiring, and condensate drain line of a 75 mm (3 in) line set inside one durable, paintable housing — covering a total run of up to 12 ft (144 in / 3660 mm).
What's Included
| Line Duct (Split Line Tube) | 3 pcs — SDD75 — 3 in / 75 mm wide × 2.44 in / 62 mm tall; each section 4 ft / 48 in / 1220 mm long (12 ft / 144 in / 3660 mm total) |
|---|---|
| Coupler / Joint | 2 pcs — SJ75 — 3.15 in / 80 mm |
| End Fitting | 1 pc — SRJ75 — 3.54 in / 90 mm |
| Wall Inlet | 1 pc — SWW75 — 8.27 in / 210 mm |
| Universal Elbow (90°) | 1 pc — SEC75 — 6.02 in / 153 mm |
| Kit Part Number | LSDK75 (8 pieces total) |
Key Features & Benefits
- All-in-one concealment: houses copper tubing, signal wire, and the drain line together for a tidy, single-channel run.
- 3 in (75 mm) profile: sized for 75 mm line sets widths — 3 in / 75 mm wide by 2.44 in / 62 mm tall.
- Up to 12 ft (144 in / 3660 mm) coverage: Three 4 ft / 48 in / 1220 mm line-duct sections join with couplers for a continuous run.
- Paintable finish: smooth exterior accepts standard exterior paints so the run can be matched to the wall.
- Fire-resistant ABS: molded from fire-resistant ABS plastic rated to an equivalent UL-94 V-0 standard.
- UV resistant: formulated to resist fading and degradation in outdoor, sun-exposed installations.
- Natural sand color: neutral finish that blends with most exterior walls.
- Complete run: includes wall inlet, 90° universal elbow, couplers, and end fitting to finish the line set from wall penetration to the equipment.
Typical Installation
- Mount the wall inlet (SWW75) at the line-set wall penetration.
- Mount line duct (SDD75) sections. Route the copper, wire, and drain line through.
- Join sections with couplers (SJ75); use the 90° universal elbow (SEC75) at corners.
- Trim the line duct to length as needed for each run.
- Finish the open end with the end fitting (SRJ75).
- Paint to match the exterior wall if desired.
Specifications & Manuals
Product documentation includes the manufacturer submittal / production specification sheet to assist with product selection and installation.
Frequently Asked Questions
What size line set does the LSDK75 cover kit fit?
The LSDK75 is built for 75 mm line sets. The line duct measures 3 in / 75 mm wide by 2.44 in / 62 mm tall, giving room for the refrigerant copper, control wire, and drain line in a single channel.
How long of a run does one kit cover?
Each kit includes three 4 ft / 48 in / 1220 mm line-duct sections, for a total straight-line coverage of up to 12 ft / 144 in / 3660 mm. The sections can be trimmed to fit your exact run.
Can the LSDK75 line cover be painted?
Yes. The smooth exterior is paintable with standard exterior paints, so the cover can be finished to match the wall. It also ships in a neutral natural sand color that blends with most surfaces as-is.
What is the LSDK75 duct made of?
The components are molded from fire-resistant ABS plastic rated to an equivalent UL-94 V-0 flammability standard, in a natural sand color, and are UV resistant for outdoor use.
What comes in the kit?
Eight pieces total: three line-duct sections (SDD75), two couplers (SJ75), one end fitting (SRJ75), one wall inlet (SWW75), and one 90° universal elbow (SEC75).
Can the LSDK75 be installed outdoors?
Yes. It is UV resistant and intended for the exterior line-set run between a wall penetration and outdoor equipment on residential and light-commercial mini-split installations.
Submittal LSDK75
