RTS overflow catch can canisters eliminate the safety concerns and messy cleanup associated with high-rpm transmission fluid blow-by. These overflow tanks feature a lightweight aluminum construction and a durable powdercoated finish in black. Their compact size provides ample ground and header clearance for drag cars, plus their quick-disconcect hose line offers simple plumbing for reduced weight and race durability. Draining the overflow canisters is easy with their 1/8'' drain petcock taps. Available for a variety of transmissions including Ford C4, GM Powerglide, 4L80E, TH350 and TH400. Kits includes everything needed to install! Fabricated Aluminum Catch can overflow tank Black Power Coated Hex vent 90 ° swivel fittings and tube Note: Some C4 transmissions may require a 1/8" NPT port to be tapped into the tailhousing.