You can add for example event on checkbox click. And then send your form, this will result in calling controller, process your data from form in that controller and based on that return your new view. ;)
So
1. add event on checkbox using for example jquery
2. send form
$("#mycheckbox").click(function(){
$("#myForm").submit();
})
3. process data in contoller
[HttpPost]
public ActionResult FilterByPara(Guid SubCategoryId, string BrandId , decimal Price1 = 0, decimal Price2 = 0, string SelPara = "")
4. return view
return View(products);