Installed in toilet systems where the toilet or holding tank is below waterline or near waterline, to prevent sea water from siphoning through the toilet system, potentially swamping the vessel. Inlet and outlet plumbing is looped well above waterline and the vented loop is installed at the top of the loop, preventing siphoning. When installing ensure the vented loop will remain above water line when boat is fully loaded and / or heeled.
BLA Code
Hose Size mm
Hose Size in
Width mm
Depth mm
Mount Holes mm
BLA Code
Hose Size mm
Hose Size in
Width mm
Depth mm
Mount Holes mm
139090
19
3/4
75
96
25
139092
25
1 1/2
100
150
43
139096
38
1 1/2
130
200
55
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