Help: How to install unique seal

[Coleus]

Alright,

If i have a 3/4" and 1" uniseals, how big of a hole i have to drill ? i measure up the 3/4" and 1" hole and it does not seem i have enough room

Please help!

Thanks

[mark]

fit on a uniseal is quite tight.

Lots on charts on the net for drill size, here's one (http://www.aquaponiclynx.com/products/uniseal)

[Coleus]

thanks mark