You can t get tees at the local home center.
													
																	Diy 6 to 4 duct reducer. 
								
	
		
	
																	He cut some holes in the dryer vent duct to fan it out and taped around it but said it will leak air and lint until a reducer is added. 
																	The reducer is used to transition from a 6 in. 
																	The 6 end was too small to mate with a 6 flexible duct and forced me to rely on metallic duct tape to attach it to the 6 end of the reducer. 
																	3 8 out of 5 stars 27. 
															
													
								
	
		
	
																	The installer said i needed to buy a pipe reducer because the dryer vent duct and the exhaust pipe are both 4. 
																	Imperial 6 in dia x 4 in dia duct reducer. 
																	Nutone 475 6 to 4 duct reducer black. 
																	4 4 out of 5 stars 52. 
															
													
								
	
		
	
																	30 gauge galvanized steel construction for durability. 
																	Pipe in an hvac system. 
																	And you need a tee or you just want to make a take off the existing rou. 
																	The sheet metal shop is a long ways off. 
															
													
								
	
		
	
																	It is suitable for most hvac applications. 
																	Used to reduce the diameter of round pipe when making connections. 
																	6 to 4 inches duct reducer abs plastic with 4 inch od and 6 inch od openings designed to fit flexible dust collector hoses 73473. 
																	Item 36406 model gvl0040 a. 
															
													
								
	
		
	
																	Can also be used to increase pipe diameter when required. 
																	Pipe to a 4 in. 
																	Round reducer is made of galvanized steel. 
																	It features hemmed collar edges for enhanced strength and a secure fit.