Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550

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Chrome cap white plastic vacuum breaker black oring and black washer.

Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550 - Image 2

Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550 - Image 3

Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550 - Image 4

Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550 - Image 5

Legend Valve 108-903 Vacuum Breaker Kit for Hydrant Stem T-550 TM-550 - Image 6

WHAT OUR CUSTOMERS SAY…

“Prompt, competent service. Got it, installed it, everything works. Even shipped to Canada on a part that was difficult to find here. 5 Stars for sure. ”

-Jim

04/05/2022

$6.17

The product “Legend 108-903” is a vacuum breaker repair kit manufactured by Legend Valve designed for their T-550 and T-550A frost-free sillcocks. Its purpose is to prevent the backflow of non-potable water into the main water supply.

The kit is used to repair outdoor hose faucets (sillcocks) that are dripping from the vacuum breaker vent holes or not shutting off properly. Using this kit allows for the repair of the existing faucet rather than the more costly replacement of the entire sillcock assembly.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

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Legend Hydrant Stem Vacuum Breaker Repair kit for T-550 TM-550

108-903

Designed specifically for Legend Valve T-550 and T-550A anti-siphon frost-free sillcocks, which come in lengths from 4 to 14 inches.
The kit includes a stainless steel cap, a body (larger plastic piece with an o-ring), and a piston (smaller plastic piece).
Prevents backflow to ensure the safety of the potable water supply.

UPC: 662545049205

Common questions about this product

Yes, this is the OEM recommended part.

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

We will make sure you have the right part.

WHAT OUR CUSTOMERS SAY…

“These people were extremely helpful in taking me through replacing a 25 year old hard water frozen cartridge on my Philrich sink faucet. They were able to identify the correct part I needed from a photo I sent (I had it figured out wrong). I was pleasantly surprised they had an obscure part like this, but they also told me how to extract the old one when I couldn’t get it out. They said to unscrew it after I had concluded from YouTube the old cartridge was supposed to just slide out. It threaded out as they said and saved me buying a cartridge extractor and a hernia. The whole experience has been excellent. ”

-Pete L.

03/10/2026