Streamline N-4160 72 in. Acrylic Soaking Tub vs Streamline N-4380 72 in. Acrylic Soaking Tub

These are the same Streamline tub in the same 72 x 36 drop-in shell, so the real choice comes down to drain finish and the shape of the floor. The N-4160 has a longer, wider flat bottom (49.2 x 22.6 in), which suits taller bathers who want room to stretch out. The N-4380 has a shorter, narrower bottom (53.3 x 21.3 in) but adds a textured floor and an overflow, and its matte black drain matches black fixtures. Both are 3.8mm acrylic at about 59.5 lb, and owners of this class of tub report the acrylic holds up but flexes without a mortar or foam bed under it.

• Choose the Streamline N-4160 if you want the roomier flat bottom for stretching out and oil rubbed bronze matches your faucet and trim.
• Choose the Streamline N-4380 if you want a textured, slip-resistant floor and an overflow, and matte black fits your fixtures.