Best zep commercial high traffic carpet cleaner

Zep Carpet Cleaner Commercial Instant Spot Remover, 19 Oz (2 Pack)Resolve Easy Clean Pro Carpet Cleaner Gadget + Foam Spray Refill, 22 ozZPEZUHTC128 - Zep Commercial High Traffic Carpet CleanerZep Carpet Extractor Shampoo 128 ounce ZUCEC128Resolve High Traffic Carpet Foam, 88 oz (4 Cans x 22 oz),Cleans Freshens ...