McDonnell & Miller 153900 69 Low Water Cutoff
Reliable protection for low-pressure steam boilers. Designed for residential and commercial use, this unit features dual precision switches to control the cut-off and trigger an alarm or feeder. The packless bellows design reduces maintenance, while the adjustable BX outlet simplifies installation.
Orders placed by 2:00pm EST will ship same day, except on holidays.
More Details
Product overview
Specifications
| Manufacturer Part Number | |
|---|---|
| UPC | |
| Overall Dimensions | n/a |
| Material | n/a |
| Domestic or Import | n/a |
| End Style | n/a |
| Type | n/a |
| ADA Compliance | n/a |
| Warning | n/a |
| Standards and Approvals | n/a |
Resources
Delivery & Returns
Orders will ship same day if received by 2pm EST.
Upcoming holiday closures: May 25, 2026
All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.
FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

