kits are designed for 4D and 8D battery and are
incresingly more difficult to get the correct battery water kit.
See what battery you have to select the correct kit.
For standard 12V batteries go to our "12V
Aqua Pro Kit" catagory.
with 3/4" Press in Cell Cap- 3/4" press in cap with 1.62" water shut
Centenial Battery- Tapered vent
well with 3/4" Press in Cell Cap- tapered vent well using a 15mm
diameter float (#169 with 13mm extension)- 1.62" water level shut off.
East Penn- 8D with 3/4" press in style cap
OR 22mm x 1.5mm pitch screw in cap- selecty cap style at check out-
3/4" blue float (.700" diameter)- 1.40" water level shut off.
Measure your water level
inside the battery
cell opening with cap removed before ordering.
Penn battery company offers 8D batteries with the 3/4"
press in style cap and a 22mm x 1.5 pitch screw in cap.
To add to the confusion East Penn also manufactures these
same batteries with the Deka,
West Marine, and Duracell name brands. Select
the correct style cap (press in or screw type) at check out.
Newer DEEP CYCLE Interstate
8D batteries (manufactured by US Battery
after 2010) will use the longer water kit float with extended valve
length. Most Interstate deep cycle batteries manufactured
after 2010 will measure 1 5/8" to the water full level and only have a
3/4" press style cap. Only install the longer float valve kit
in the Interstate battery measuring the longer 1 5/8" dimension.
#180- if you need a small cell hole and a long float the NEW float #180
is 16mm diameter (.640" diamter) x 33mm water level shut off
or 1.30". With stem extension of 13mm this totals 46mm or
the battery case may not tell you who made the battery . YOU
MUST measure the water level in the cell hole by removing the cell cap.
Measure down the vent will (cell hole).
Order the kit below that matches your water level and cap style for
your battery. If you don't see it we can special order what
you need for your battery.