Lukjan Straight Perimeter Register Boot — Series P5, Ø 7″, 12″ Length, 6″ Width
Straight perimeter register boot used in HVAC systems to transition from a round duct to a narrow perimeter opening. The Series P5 boot features a circular inlet and a rectangular (perimeter) face opening, providing efficient airflow delivery along the edge perimeter of a space.
- Series / model: P5 (Lukjan Straight Perimeter Register Boot)
- Part / MPN: analogous to **RB202127** variant for 7″ diameter, 12″ length, though that version is listed with 2-1/4″ width. :contentReference[oaicite:0]{index=0}
- Inlet (round duct) diameter: 7 inches
- Boot length (depth): 12 inches
- Face opening width (rectangular / perimeter opening): 6 inches
- Material: Galvanized steel (sheet metal construction, typical for HVAC boots)
- Finish: Galvanized coating (resists corrosion in duct environment)
- Gauge / thickness: Typically 30 gauge (common for register boots in the Lukjan product line)— for example, the 5″-diameter variant is listed as 30 ga. :contentReference[oaicite:1]{index=1}
- Weight (approx): ~0.50 lb (based on similarly sized boots) :contentReference[oaicite:2]{index=2}
- Design / features:
- Perimeter boot — the face opening runs along an elongated slit, delivering air along the edge of a room rather than directly forward.
- Straight, non-adjustable — no directional vanes are included (unless separately added).
- Hemmed collar edges to reduce sharp edges and aid safer handling and finishing.
- Stamp-lock construction to enhance airtightness at seams (common in Lukjan boots). :contentReference[oaicite:3]{index=3}
- Installation / connection:
- Insert the round inlet into mating duct or fitting — secure with screws, rivets, or straps.
- Install the perimeter register grille over the face opening, making sure the slit aligns appropriately.
- Seal all seams and joints (foil tape, duct mastic) to minimize leakage and maintain system efficiency.
- Support the boot adequately from the duct or structure to prevent sagging or misalignment over time.
- Performance & considerations:
- Because a perimeter boot distributes airflow across an edge, velocity design must ensure consistent flow along the slit length to avoid dead zones.
- The 6″ slit width must be sufficient to allow the required volumetric flow without excessive pressure drop or noise.
- Galvanized steel and moderate gauge thickness ensure practical durability in indoor HVAC environments.
- Edge conditions (trim, grille interface) should be carefully flush and sealed to preserve aesthetic finish and avoid leakage.
