3 1/4 vs. 4x10x5 register end boot


  #1  
Old 04-16-18, 09:55 AM
E
Member
Thread Starter
Join Date: Dec 2011
Location: Canada
Posts: 262
Received 2 Upvotes on 2 Posts
3 1/4 vs. 4x10x5 register end boot

Anyone know when I would use a 3 1/4x10x5" vs. a 4x10x5" register duct? Seen both at the store today and not sure if there is a reason to use one or the other. Thanks
 
  #2  
Old 04-17-18, 04:57 AM
airman.1994's Avatar
Member
Join Date: Dec 2005
Location: VA
Posts: 5,491
Upvotes: 0
Received 8 Upvotes on 8 Posts
90 cfm vs 140 cfm but its a mute point because the 5 in duct coming into it is only rated at 60 cfm if noise is an issue go with the bigger. If its a big room and you need to throw the air more go smaller
 

Last edited by airman.1994; 04-17-18 at 04:59 AM. Reason: added info
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: