982L-S&P in-line adapter. 4.5X18.5 duct intake (FF400/500). December 20, 2019 | No Comments 982L-S&P in-line adapter. 4.5X18.5 duct intake (FF400/500). Add To Quote Request This product is already in quote request list View Your Quote Cart SKU: AAIS-SP-982L-S&P in-line adapter. 4.5X18.5 duct intake (FF400/500). Category: S&P FF Ceiling Ventilators Description Description S&P in-line adapter. 4.5X18.5 duct intake (FF400/500). Related Related products 981L-S&P in-line adapter. 8″ round intake (FF200/250/300). Read more Add To Quote Request This product is already in quote request list View Your Quote Cart FF250-S&P 250 CFM ceiling mounted ventilator. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart RD2-S&P UL rated, 4 hour ceiling radiation fire dampers. (FF400 thru FF700) Read more Add To Quote Request This product is already in quote request list View Your Quote Cart FF1500-S&P 1500 CFM ceiling mounted ventilator. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart Related