Features:

Bayonet Fitting Simplifies Upgrade to Automatic Backwash
Connections for External Control on the MV876 Provide for Use in Automated Systems and Differential Pressure Control
MV876 Can be Manually Activated to Initiate Backwash
Battery (AA) Backup to Ensure Completion of Backwash Cycle in Spite of Power Loss

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: MV876B1018
Product Type: Water Sediment Filter Backwash Control
Switch Type: SPDT
Voltage Rating: 24 VAC
Power Rating: 10 Watts
Cycle Time: 20 Second
Dimensions: 7.6" x 8.25" x 3.65"
Weight: 2.22 lb.
Used For: F74C/F74C
Includes: (5) AA Back-Up Battery and Remote Activation Control