POTTORFF Louver brochure-2026

POTTORFF IS:

Innovation, quality, performance and service are what differentiate Pottorff’s products among the competition. Founded in 1928, we are one of the most respected suppliers in the industry today. It is our experience, versatility, and ability to react quickly to our customer’s needs which makes us the choice for architects and engineers.

HOW WE ARE DIFFERENT FROM THE COMPETITION: ■ Ongoing commitment to personal and technical service

■ Products delivered on time and on budget ■ Louver Information and Selection Tool ■ Quick ship - when you need it FAST!

PRODUCT SELECTION GUIDE

AIR VOLUME (cfm)

BLADE ANGLE

BLADE STYLE

FREE AREA

AMCA CERT*

VELOCITY (fpm)

MODEL

DEPTH

PG

NON-DRAINABLE LOUVERS EEI-430 DRAINABLE HEAD EFE-430-HP DRAINABLE HEAD EFJ-145 EFJ-245 EFJ-430 EFJ-437 EFJ-445 EFJ-637-HP DRAINABLE HEAD

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5

– –

– –

4" 4" 1" 2" 4" 4" 4" 6" 6" 4" 4" 4" 6" 2" 4" 4" 6" 2" 4" 4" 4" 6" 6" 6" 6" 5" 3" 5" 6" 5" 6" 6" 9" 6" 2" 3" 4" 5" 6" 5" 9" 5" 5" 2" 4" 5" 6" 7" 4"

30° 30° 45° 45° 30° 37.5° 45° 37.5° 45° 30° 37.5° 45° 37.5°

INTAKE – EXHAUST EXHAUST J-BLADE J-BLADE J-BLADE J-BLADE J-BLADE HIGH-PERFORMANCE J

– 64.5% 51.9% 45.8% 59.6% 55.5% 50.1% 56.3% 50.6% 59.6% 55.5% 50.1% 54.7% 56.0% 34.8% 50.4% 57.7% 46.1% 58.1% 58.1% 50.4% 60.7% 57.5% 54.6% 50.6% 41.9% 46.9% 54.8% 52.6% 50.2% 60.9% – 53.9% 48.1% 41.5% 46.9% 42.9% 54.8% 52.6% 50.2% 53.9% 46.2% 52.5% 41.3% 42.7% 46.3% 50.3% 50.6% 55.3%

– – – – –

349 942 1,002

2,869 6,911 9,619 6,853 6,317 8,226 8,101 9,619 6,853 6,317 8,916 3,351 4,649

772 781 915

WP/AP WP/AP

– – –

EFJ-645 EFK-430 EFK-437 EFK-445 EFK-637 EFY-245 EFY-445

1,000 1,002 772 781 1,019

J-BLADE K-BLADE K-BLADE K-BLADE K-BLADE

WP/AP WP/AP

– – –

339 834

45° 45°

INVERTED Y INVERTED Y

DRAINABLE LOUVERS EDD-445 EDD-637 EFD-245 EFD-435 EFD-437 EFD-445 EFD-635 EFD-637 EFD-645 ERD-645

WP/AP WP/AP WP/AP WP/AP WP/AP WP/AP WP/AP WP/AP WP/AP –

45° 37.5° 45° 35° 37.5° 45° 35° 37.5°

DUAL-DRAINABLE DUAL-DRAINABLE

1,026 1,113

8,311 10,242

DRAINABLE DRAINABLE DRAINABLE DRAINABLE DRAINABLE DRAINABLE DRAINABLE RECESSED – DRAINABLE

868 966 903

6,404 8,984 8,398 8,311

1,250 1,250 1,250 1,250 1,250 1,250 1,250 1,087 690 1,006 1,250 1,250 1,250 1,218 1,029 1,250 1,250 1,250 1,250 1,250 1,250 – 1,250 1,076 1,026 1,250 1,113 1,009 990

12,138 10,242

45° 45°

8,811 8,059

MIAMI-DADE — HURRICANE RATED LOUVERS ECD-545-MD ECV-345-MD ECV-545-MD ECV-645-MD EDV-545-MD EFD-635-MD EFD-635-MD-PH PENTHOUSE

6 6 6 6 6 6 6 15

8,388 9,375

WP/AP/W WP/AP/W WP/AP/W WP/AP/W WP/AP/W WP/AP WP/AP/W WP/AP/W WP/AP/W WP/AP/W WP/AP/W WP/AP – WP/AP/W WP/AP WP/AP WP/AP/W AP/W WP/AP/W WP/AP/W WP/AP/W WP/AP/W

45° 45° 45° 45° 45° 35° 35° 37° 37.5°– 45°

CHEVRON VERTICAL CHEVRON VERTICAL CHEVRON VERTICAL CHEVRON DUAL-BLADE

6,649 8,538 9,250 10,050 10,963 10,525 10,038 12,175 – 10,775 8,281

DRAINABLE DRAINABLE DUAL-BLADE COMBINATION

EFJ-937-MD EXA-645-MD

7 7 7 7 7 7 7 6 6 8 8 8 8 8 8 8 8 8 8

VERTICAL CHEVRON VERTICAL CHEVRON VERTICAL CHEVRON VERTICAL CHEVRON VERTICAL CHEVRON SEVERE-DUTY/WIND-DRIVEN RAIN LOUVERS — VERTICAL BLADE ECV-245 ECV-345 ECV-445 ECV-545 ECV-645 EDV-545 EFJ-937 SEVERE-DUTY/WIND-DRIVEN RAIN LOUVERS — HORIZONTAL BLADE ECD-245 ECD-445 ECD-545 ECD-635 ECD-745 EFD-437-FL DUAL-BLADE DUAL-BLADE 45° 45° 45° 35° 45° 37.5° CHEVRON CHEVRON CHEVRON CHEVRON CHEVRON DRAINABLE

9,866 9,105

45° 45° 45° 45° 45° 45° 37° 45° 45°

8,299 9,375 8,575

10,963 10,525 10,038 10,755

EPV-545 3/8" PERF FACE PLATE EPV-545 1 " PERF FACE PLATE

– –

8,044 5,795

VERTICAL CHEVRON VERTICAL CHEVRON

*AMCA CERT LEGEND:

WP

AL Air Leakage

AP Air Performance

S

W

Wind-Driven Sand WS

Sound

Wind-Driven Rain

Water Penetration

Abbreviations used throughout the brochure

1

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