Livewell timers?

Does anybody have experience with the following livewell timers?
The most popular seem to be Johnson, Rig Rite, Mar-Lan, Attwood, Minute Man...
I'm building a sweet livewell for the Ultra 4.7 and this is the last piece I need to get.
Originally I wanted to get a rocker switch then install an inline timer. But now I'm looking for a toggle switch or a dial with a built-in timer.
Thanks for any advice, and I promise to post pics!

   I use the Attwood timer.    toggle switch built in.     You can run it either full on or timer mode.

I use the Attwood one on my pontoon boat.  It's a toggle switch with internal timer (not adjustable).

~Bill

Cool--thanks guys!
I see the Attwood is a toggle switch. Did you have to cut a square hole to install it? Or do you just need to drill a small circular hole for the switch to poke through?

As of right now, I'm leaning towards the Rig Rite or the Johnson because those are adjustable and they have a dial instead of a toggle. So I'm concerned the toggle m/b too tall to fit in the flat area under the hatch (whereas the dial appears shorter). I've got to figure out how high the Attwood toggle switch protrudes...to ensure it won't get smashed/damaged when i close the hatch.

Just a small hole for the toggle stem to pass thru.  Always welcome to come by my place to see it installed    Not sure if the W.M. in Monterey has them in stock.  Got mine from the Santa cruz store.  I think they also stocked the Johnson one too.

WM has the Attwood timers, but they are selling them for $63. (I've been there like 3X in the last week LOL...ran into Sackyak there yesterday on his way home from the America's Cup)

Just curious, why do you want a timer?

-Allen

Because I want the pump to automatically cycle instead of manually turning it on & off. I have a homemade bait tank with a manual toggle switch, and I basically have to leave it on...and run continuously. Or reach back and turn it off then back on every few minutes. So it'll be easier to manage (set it and forget it) and it will conserve battery life.
With an adjustable timer, I can also dial-in the intervals based on which type of bait I plan to use that day.

WM has the Attwood timers, but they are selling them for $63. (I've been there like 3X in the last week LOL...ran into Sackyak there yesterday on his way home from the America's Cup)

Never said they were the least expensive

~Bill

Just an FYI,
The attwood timer is on for 30 seconds every 3 minutes.
It also has a constant on position and off.
only a 3/8" hole needed for install.
Had one on my bait tank that worked well for anchovies, sardines, and squid. The tank was a liquidlogic and was raffeled off at a PIF event. Now resides at Frankinfishing's house

   I have a couple new ones  $ 42  ea.   
   I've  tried without a timer,  It's easy to forget to switch on sometimes

http://www.kayakfishingsupplies.com/servlet/the-705/Timer-Switch/Detail
these timers are really nice. you can program the intervals.

Take good pictures of the project!