The Planted Tank Forum - Reply to Topic
 Title:
Message:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
 You may choose an icon for your message from the following list: No icon

## Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.

User Name:
 Please enter a valid email address for yourself. Email Address:
OR

## Log-in

 User Name Password Remember Me?
Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

 Additional Options Miscellaneous Options Automatically parse links in text Automatically retrieve titles from external links

 Topic Review (Newest First)
 09-10-2011 04:07 AM HolyAngel Quote: Originally Posted by HolyAngel View Post the first number in mm is the inside, the second is the outer and the converted tubing size is inner diameter :P Edit: fixed! Thanks 150EH 09-10-2011 03:01 AM 150EH Quote: Originally Posted by Momotaro View Post Since it has been asked on the forum several times, here are the Eheim metric tubing conversions: Eheim Metric Tubing Conversion 9/12mm = 3/8" 12/16mm = 1/2" 16/22mm = 5/8" 25/34mm = 1" The coverted number is SAE (Standard American English) and is what you might see on a wrench or socket as a unit of measurement 3/8 - 1/2 - 5/8 - 1" are all the inside measurements of the tubing 12mm = 1/2" roughly. The metric number that Eheim uses are ID first (ie 9/12) and OD is second. In English or SAE this would be 3/8 ID 1/2 OD ID = inside diameter OD = outside diameter Sorry to be so thorough but I wanted no confusion. 09-06-2011 10:16 PM HolyAngel the first number in mm is the inside, the second is the outer and the converted tubing size is Outer diameter. the inside should be the same but we dont have those fractions :P 09-06-2011 09:12 PM 150EH That ID or inside diameter! 10-18-2005 10:34 PM Momotaro Eheim Metric Tubing Conversion Since it has been asked on the forum several times, here are the Eheim metric tubing conversions: Eheim Metric Tubing Conversion 9/12mm = 3/8" 12/16mm = 1/2" 16/22mm = 5/8" 25/34mm = 1"

 Posting Rules You may not post new threads You may post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

For the best viewing experience please update your browser to Google Chrome