Here is a link to NRHS web page describing this product. I've been using it since summer of 2006 and am very happy with it. It is a bit pricey, but the quality and performance are impeccable.Here is a link to a manufacturer's website.
Here is a link to NRHS web page describing this product. I've been using it since summer of 2006 and am very happy with it. It is a bit pricey, but the quality and performance are impeccable.