423-S&P galvanized steel round transition. 4.5 X 18.5 to 10″ round. December 20, 2019 | No Comments 423-S&P galvanized steel round transition. 4.5 X 18.5 to 10″ round. Add To Quote Request This product is already in quote request list View Your Quote Cart SKU: AAIS-SP-423-S&P galvanized steel round transition. 4.5 X 18.5 to 10" round. Category: S&P FFC Inline/Cabinet Ventilators Description Description S&P galvanized steel round transition. 4.5 X 18.5 to 10″ round. Related Related products FFC200-S&P 200 CFM inline cabinet fan. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart FFC900-S&P 900 CFM inline cabinet fan. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart 634-S&P model 634 roof cap. For 3 1/4 X 10″ or up to 8″ round duct, built in backdraft damper and birdscreen, baked enamel. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart 437-S&P model 437 high capacity roof cap up to 1200 CFM. Birdscreen, steel housing, black epoxy finish. 18-1/2″ X 27-1/4″. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart Related