

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The XYLEM 135000 McDonnell & Miller 51-2 is a mechanical water feeder with low water cut-off functionality. This device monitors and regulates water levels in HVAC systems, particularly boilers, to prevent damage from overheating or dry firing. It ensures proper system operation by detecting and managing water levels through mechanical and electronic methods, contributing to improved efficiency and equipment longevity.
Ensures proper water level management and safety in HVAC boiler systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!