Answers.Body: <p><a href="https://www.bricklink.com/catalogList.asp?catType=P&amp;catString=530" rel="noreferrer">Here</a> are all the 4 mm diameter pneumatic tube parts Bricklink knows about.</p>
  <p>For each of these (filtered by color if necessary) we can take the part (for example <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c40&amp;idColor=11#T=P&amp;C=11" rel="noreferrer">Hose, Pneumatic 4mm D. 40L / 32.0cm</a>), check its average sale price in the &quot;Price Guide&quot; tab (in this case at the time of writing US $2.66), then divide that by the length to get the unit price (US $0.044 for a LEGO unit or $0.083 for a cm). Repeating the process for all available lengths will result in a list of unit prices, sorting that gives you the best price to length ratio.</p>
  <p>Or if you are looking to buy the cheapest piece from which the most 12cm pieces can be cut, you can then perform an integer division on the original length and arrive at the price of a single 12cm part for each avaialble length. For example, the 32 cm piece above nets you 2 pieces of 12cm lengths, so its unit price is $1.33. Whereas the <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c535#T=S&amp;O=%7B%22iconly%22:0%7D" rel="noreferrer">428 cm piece</a> is currently on sale for $53.05, and can be cut into 35 pieces of the desired 12cm length, so it gives us $1.51 as unit price.</p>
  <p>For reference, <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c15#T=P&amp;C=11" rel="noreferrer">the actual 12cm piece</a> costs on average $7.45, but the twice as long <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c30#T=P&amp;C=11" rel="noreferrer">24 cm one</a> is sold for $0.75 on average, so there seems ot be no easy way besides checking and calculating the relevant prices for each available length.</p>
  <p>The actual computations and sorting I leave to you or to other site contributors.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-19T09:53:03.153Z
Answers.LastActivityDate: 2021-04-19T09:53:03.153Z
Answers.UserDisplayName: zovits
Answers.Body: <p>As per my knowledge, community's stand on pneumatic hoses is that they are not produced by LEGO but are sources from 3rd party. So it is somewhat OK to use 3rd party pneumatic hoses as a replacement. These are far more reasonably priced as well.</p>
  <p>There is an <a href="http://www.blokbricks.com/contents/en-us/d2.html" rel="nofollow noreferrer">option</a> to buy pneumatic hoses by length starting at €2.50 per meter.</p>
  <p><strong>Disclaimer</strong>. I'm not affiliated with shared resource. Just happen to know of this opportunity.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-04-19T11:22:53.267Z
Answers.LastActivityDate: 2021-04-19T11:22:53.267Z
Answers.UserDisplayName: Alex
Body: <p>As the title says, I would like to know what the most cost efficient length of pneumatic hose (including 99021s) is, assuming the average length of each piece is 12cm (4.7&quot;) and I can cut large pieces.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2021-04-18T23:59:12.153Z
Comments.Text: Does color matter?
Comments.UserDisplayName: RSchulz
Tags: <piece-information><technic><shopping><pneumatic>
Title: Most cost efficient length for pneumatic hoses?
UserDisplayName: technicguy1
ThreadText: # Most cost efficient length for pneumatic hoses?
  
  (Asked by: username_0 on 2021-04-18)
  
  As the title says, I would like to know what the most cost efficient length of pneumatic hose (including 99021s) is, assuming the average length of each piece is 12cm (4.7") and I can cut large pieces.
  
  **Tags:** piece-information, technic, shopping, pneumatic
  
  > **Comments:**
  > **username_1**: Does color matter?  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2021-04-19. Score: 5 | Accepted answer
  
  [Here](https://www.bricklink.com/catalogList.asp?catType=P&catString=530) are all the 4 mm diameter pneumatic tube parts Bricklink knows about.
  
  For each of these (filtered by color if necessary) we can take the part (for example [Hose, Pneumatic 4mm D. 40L / 32.0cm](https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c40&idColor=11#T=P&C=11)), check its average sale price in the "Price Guide" tab (in this case at the time of writing US $2.66), then divide that by the length to get the unit price (US $0.044 for a LEGO unit or $0.083 for a cm). Repeating the process for all available lengths will result in a list of unit prices, sorting that gives you the best price to length ratio.
  
  Or if you are looking to buy the cheapest piece from which the most 12cm pieces can be cut, you can then perform an integer division on the original length and arrive at the price of a single 12cm part for each avaialble length. For example, the 32 cm piece above nets you 2 pieces of 12cm lengths, so its unit price is $1.33. Whereas the [428 cm piece](https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c535#T=S&O=%7B%22iconly%22:0%7D) is currently on sale for $53.05, and can be cut into 35 pieces of the desired 12cm length, so it gives us $1.51 as unit price.
  
  For reference, [the actual 12cm piece](https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c15#T=P&C=11) costs on average $7.45, but the twice as long [24 cm one](https://www.bricklink.com/v2/catalog/catalogitem.page?P=5102c30#T=P&C=11) is sold for $0.75 on average, so there seems ot be no easy way besides checking and calculating the relevant prices for each available length.
  
  The actual computations and sorting I leave to you or to other site contributors.
  
  
  ---
  
  ### Answer by username_3 on 2021-04-19. Score: 2
  
  As per my knowledge, community's stand on pneumatic hoses is that they are not produced by LEGO but are sources from 3rd party. So it is somewhat OK to use 3rd party pneumatic hoses as a replacement. These are far more reasonably priced as well.
  
  There is an [option](http://www.blokbricks.com/contents/en-us/d2.html) to buy pneumatic hoses by length starting at €2.50 per meter.
  
  **Disclaimer**. I'm not affiliated with shared resource. Just happen to know of this opportunity.
  
  
  ---
  
  