4= 1 gal. bottles per case.
The new look has not changed the formula.
Yes, this product will remove nicotine stains.
That is about the only thing we could not removes :(
Hi Tina, Yes, this product contains Sodium Hydroxide. You may find more information in the (M)SDS information located at Chemtura.com.
Yes, Greased Lightning Super Strength will remove heavy grease on grout lines.
Home Depot purchases 4-count cases. You may ask them to sell you an unopened case.