The swap that looks close
clear packing tape is the usual substitute for brown packing tape, and it is the wrong one. Clear tape does the same close, and it shows as a stripe. Use it when the stripe does not matter.
Wholesale Packaging lists Brown packing tape separately because the jobs diverge as soon as the goods are on the bench.
What the right line actually does
Brown packing tape closes a brown carton when the seal should match the board.
The tape range lists brown and buff packing tapes apart from clear tape, vinyl tape and gummed paper tape.
If you have already mixed them
The usual waste is a clear roll on a brown carton, or brown tape on a white postal box.
At Wholesale Packaging, Brown packing tape does not change the cutoff. Orders by 3pm leave the same day. Under £50 ex VAT the delivery is still available. It is just not the free threshold.
Open Brown packing tape when you already know this line. Tape is sold by the roll. A carton of rolls is the bench quantity, not a guess at metres. Wholesale Packaging will still dispatch an order placed by 3pm on the same day.