Replaces voltmeter mounted in M4 base.
No tools required except medium philips screw driver to remove bottom plate. Push and snap out old, push and snap in the new.
Automatic Battery Charger For White Tank M4 (Does Not Fit Blue Tank M4) $14.99
PUMP FOR WHITE TANK M4 (70 PSI - NOT COMPATIBLE WITH BLUE TANK M4) $19.99
ROTARY SILVER ON/OFF ADJUSTABLE POWER SWITCH $6.99
Lithium Ion Battery 12 Volt 12 Ah and Charger
out of 5 stars