641-S&P model 641 wall cap. Aluminum natural finish. Built in backdraft damper and birdscreen. For 6″ round duct. December 20, 2019 | No Comments 641-S&P model 641 wall cap. Aluminum natural finish. Built in backdraft damper and birdscreen. For 6″ round duct. Add To Quote Request This product is already in quote request list View Your Quote Cart SKU: AAIS-SP-641-S&P model 641 wall cap. Aluminum natural finish. Built in backdraft damper and birdscreen. For 6" round duct. Category: S&P FFC Inline/Cabinet Ventilators Description Description S&P model 641 wall cap. Aluminum natural finish. Built in backdraft damper and birdscreen. For 6″ round duct. Related Related products D100-S&P twin damper flaps and mounting hardware kit. (FFC2000) Read more Add To Quote Request This product is already in quote request list View Your Quote Cart 423-S&P galvanized steel round transition. 4.5 X 18.5 to 10″ round. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart FFC300-S&P 300 CFM inline cabinet fan. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart FFC400-S&P 400 CFM inline cabinet fan. 120 VAC. Read more Add To Quote Request This product is already in quote request list View Your Quote Cart Related