Series 4000 911X Oxygen III Nebular Filter

Just saw this deal at Meade.
Would like to receive any input on the quality and price.
Seems like a good deal to have quality filter that reduce urban light to enhance nebula imaging.

L I N K

Its on close out sale with 50 percent discount.
Any thought on the filter is appreciated.

What camera are you using for imaging and is this for use with a scope or just a camera lens ? Just hold off on buying this before you hear from others here that use a different filter for their camera that produces some of the best images from a DSLR you can get . I know the filter but can't remember what it is called but someone will be along to tell which one it is . It's something like the Astronomic something or other .

Thanks for reply Ron.
One thing I am hearing about this filter is that it might be a SCT Filter to be fited in the rear threads of an SCT. I am in need of using filter for LX-200. I have both DSI dedicated camera and regular DSLR, also IR modified sensor DSLR. So if I can't use it on my glass or find a way to modify it into part of my optical chain, if would not be useful to me.
I am very eager to find what that filter is that you have in mind? Was price any close to this one? I am hearing people buying it at full price and current half price (That I believe lasts only for one week, seems temptating).

Samsen if i'm not mistaken the filter i am talking about is a Astronomik CLS Light Pollution Filter . It's a light pollution filter and works very well with DSLRs' . It is a little expensive tho .