Which is better for a standard bathroom sink?

The 4-inch B. Its 4-inch centerset fits most three-hole sinks, and the swivel high-arc spout gives more clearance.

Which has the taller spout?

The 4-inch B. It is 8.51 inches tall with a 6-inch spout height and 4.7-inch reach. The 8-inch A does not list a spout height.

Do both come with a drain and supply lines?

Yes. Both list a pop-up drain and supply lines in the box, plus a removable 1.2 GPM water-saving valve.

Both use A-grade 304 stainless steel and ceramic valves, so expected life is similar. The B has the higher rating, 4.6 versus 4.4.

Is the 8-inch worth choosing over the 4-inch?

Only if your sink's three holes are spread 8 inches apart. Otherwise the 4-inch B fits more sinks and adds a swivel spout.

Yes. Both are certified to cUPC and NSF 61 lead-free standards.

KINGTACK Bathroom Faucet for Sink 3 Hole, 8 Inch Bathroom Faucets with Pop-up Drain and Supply Lines, Matte Black vs KINGTACK Bathroom Sink Faucet, 4 inch Matte Black Bathroom Faucets with Pop-up Drain and Supply Lines, Stainless Steel 2-Handle Centerset Faucet for Bathroom Faucet 3 Hole

Both are KINGTACK matte black two-handle faucets in 304 stainless steel with the same 1.2 GPM flow and lead-free certification. The 4-inch B is the better pick for most sinks: it has a 360-degree swivel high-arc spout, lever handles and a higher rating (4.6 from 210 ratings vs 4.4 from 253). The 8-inch A suits wide three-hole sinks where you want the handles spread further apart. No current store price is listed for either, so check each store page on Deal.ai before buying.

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