411022-S&P 22″ X 22″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. December 19, 2019 | No Comments 411022-S&P 22″ X 22″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. Add To Quote Request This product is already in quote request list View Your Quote Cart SKU: AAIS-SP-411022-S&P 22" X 22" series 411 automatic exhaust damper. Max velocity of 2000 FPM. Category: S&P SQB Belt Drive Square Inline Centrifugal Duct Fans - 3 Phase Description Description S&P 22″ X 22″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. Related Related products MGSQB78-S&P motor safety guard (cover). Not mounted. SQB 07, 08. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart MGSQB1012-S&P motor safety guard (cover). Not mounted. SQB 10, 12. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart MGSQB18-S&P motor safety guard (cover). Not mounted. SQB 18. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart 411018-S&P 18″ X 18″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart Related