In todays bathroom bathtubs come in many forms and types. Most common in small bathroom is a tub/shover combo, mostly fiberglas or acrylic unit used for shower or bath.  In larger bathrooms you may have separate bathtub and shower unit. made of acrylic or fiberglass, but alternatives are available in cast iron, enamel over steel or oKohler acrylic tub, Garden tub,ther waterproof finishes. They may be free standing, permanently built-in or or sometimes sunken. 

Until recently, most bathtubs were roughly rectangular in shape. Todays bathtubs have overflow and waste drains assembly connected to house drain and faucet installed on them or in wall above ream.  Garden tub shown on the right (made by Kohler) can be also installed with pump and jets  as Whirlpool tub. This type of tub is used mostly in larger master bathroom when separate shower is also build.

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