6" x 12" x 7" Perimeter Register Boot, Straight

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.