Stop pallets from entering flue spaces with Center Flue Spacers from Save-ty Yellow Products! These durable steel rack protection accessories produce a 6" gap between your pallets where installed, creating the required transverse flue space for a safe, fire-code compliant racking system. Transverse flue space is the necessary gap between each pallet loaded in a racking system that is crucial for fire safety by allowing for sprinkler water penetration and heat venting. Thick steel construction stands up to repeated loading and unloading of your rack system. And with simple drop-in installation, you'll be ensuring a safe racking system quickly!