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DIBD2 : UL 555 1.5 hr. Dynamic, Curtain Type, 4,000 fpm and 4" w.g. max, Optional Sleeve
Ruskin CD36 16" x 12" Galvanized Steel Low Leakage Control Damper | eBay
Ruskin Authority in Air Control, Fire / Smoke Dampers and Louvers
kele.com | Ruskin | Dampers & Airflow Products
Damper: Ruskin | 2016-11-14 | Engineered Systems Magazine
Ruskin Authority in Air Control, Fire / Smoke Dampers and Louvers
Dampers from Ruskin® | 2018-12-21 | Mission Critical Magazine
Ruskin - The FSD36 Combination Fire/Smoke Damper is both UL555 and UL555S Classified, rated as a 1.5 hour fire damper and a Leakage Class II Smoke damper https://bddy.me/33mSEMK | Facebook
Ruskin | LinkedIn
Ruskin Authority in Air Control, Fire / Smoke Dampers and Louvers
New Products for Engineers | Swartwout Series Industrial Fiberglass Dampers | Ruskin
Ruskin Announces New GenSet Dampers Models CD60GS, CD50GS And TED50GS | HVAC News
CD50CE/TED50CE Dampers – Ruskin | 2017-12-18 | Engineered Systems Magazine