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Jan 10th, 2023
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Joined: Oct 2013
Posts: 6,088 Likes: 96
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OP
Joined: Oct 2013
Posts: 6,088 Likes: 96 |
The Matala advertise an internal built in check valve that works as sprkplug describes. The membrane center covers the hole.
John
I subscribe to Pond Boss Magazine
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