411028-S&P 28″ X 28″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. December 19, 2019 | No Comments 411028-S&P 28″ X 28″ 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-411028-S&P 28" X 28" 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 28″ X 28″ series 411 automatic exhaust damper. Max velocity of 2000 FPM. Related Related products MGSQB15-S&P motor safety guard (cover). Not mounted. SQB 15. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart VFRSQ24-30-S&P floor mount rubber vibration isolators. SQ 24-30. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart VFRSQ18-20-S&P floor mount rubber vibration isolators. SQ 18-20. 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 Related