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

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

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

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

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

WHAT OUR CUSTOMERS SAY…

“This place is amazing. I live in San Antonio, Texas and there are a few plumbing stores with vintage parts but they never have what I need and the ordering process takes them weeks. I found a rare part at Noels by reverse image search but they will do it for you. I've used them 3 times. Their agents are knowledgable and polite. They will find you the same part or the after market part and get you going on your way. They have 2-3 day shipping. My house was built in the 30's and they know exactly what the after market parts are that I need. I save money and time going to them. I sure wish they were in San Antonio! I will just go directly to Noel's next time - they are LEGENDS! ”

-BP W.

06/21/2026

$6.47

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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Restore your outdoor spigot to perfect working order with this genuine Legend Valve T-550/T-550A repair kit. The 108-903 kit provides all necessary components—piston, body, and stainless steel cap—to fix leaky vacuum breakers on Legend brand anti-siphon frost-free sillcocks. It’s a cost-effective alternative to replacing your entire outdoor faucet, compatible with models ranging from 4 to 14 inches.

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…

“I had a specific problem finding the right part for my toilet repair, and the gentlemen at Noel's not only had the part in stock, but took the time to explain that I was looking for the wrong part for my problem. My HERO! Thank you! ”

-Teresa M.

11/11/2020