Rectangular perforations (PRT=panel, FRT=full)
40% open, .040" x .245" slots.
Spacing: .30" O.C. horizontal, .095" O.C. vertical.
White acrylic diffuser behind perforations.

Round perforations (PRD=panel, FRD=full)
40% open, .079" diameter holes with .125" staggered spacing.
White acrylic diffuser behind perforations.

STN - Thin vertical slots
33% open, .125" x 2.75" vertical slots spaced .375"
O.C. horizontally.
White acrylic diffuser behind perforations.

TRI - Triangular slots
15% open, .2" x .6" triangles spaced 1.2" O.C.
horizontally.
White acrylic diffuser behind perforations.

STK - Thick vertical slots
83% open, 1" x 2.75" vertical slots spaced 1.20" O.C. horizontally.
White acrylic diffuser behind perforations.

HSL - Thick horizontal slots
83% open, 1" x 5.5" vertical slots
spaced 6" O.C. horizontally. White
acrylic diffuser behind perforations.

MBL - Magnabeam
U-shaped in cross-section.
3/4" high x 1.2" O.C.
or 3/4" high x 2.4" O.C. (WW2)
Painted white

MBP - Perforated Magnabeam
U-shaped in cross-section.
3/4" high x 1.2" O.C.
or 3/4" high x 2.4" O.C. (WW2)
Perforated, painted white.

PBL - Parabolic.
Parabolic shape in cross-section.
1-1/4" high, 1.2" OC
or 1-1/4" high, 2.4" O.C.
or 2" high, 4" O.C.
Matte or semi-specular aluminum

PVI - Concave w/convex insert
Convex parabolic w/acrylic tip in cross-section
1-1/4" high, 1.2" O.C.
Matte aluminum
Insert available clear (IC) or green (IG)

FVL -Perforated concave
Concave in cross-section
1-1/4" high, 1.2" O.C.
Perforated, painted white

FXL - Perforated convex
Convex in cross-section
1-1/4" high, 1.2" O.C.
Perforated, painted white

PXL - Convex
Convex parabolic in cross-section
1-1/4" high, 1.2" O.C.
Matte aluminum

PVL - Concave
Concave parabolic in cross-section
1-1/4" high, 1.2" O.C.
Matte aluminum

RL - Radial Louver
Painted white
For R4, R6, R7, and R9 only.

RL - Radial Louver
Painted white
For D45, D66, and SQ662 only.

RL - Radial Louver
Painted white
For S373 only.

RA - Radial Acrylic Lens
For R4, R6, R7, and R9 only.

WR - Wrap Around Acrylic Lens
For D45, D66, and SQ662 only.

AL - 0.156 Prismatic Lens
For D673, D675, Q673, Q675, Q79, RC23, RC45, RC68, GM13, GM23, GM15 or GM25 only.

AL - K19 Acrylic Lens
For WW2 only.

DIF -0.125 Acrylic Diffuser
For ST318, ST318P, GM13, GM23, GM15 or GM25 only.

SBL - 0.125 Sandblasted Acrylic Diffuser
For ST318, ST318P, GM13, GM23, GM15 or GM25 only.