Delta 061201A Commercial 4"x4"x4" Box With Bushing & Guard. Delta's Line of Commercial Products are an industry leader in the Bathroom Faucets, Shower Fixtures and Bathroom Accessories. The large line of Commercial Grade products are designed to withstand the every day wear and tear, and last for years to come. These products are ideal for hospitals, schools, and other high traffic applications. This Delta 061201A Commercial 4"x4"x4" Box comes equipped with Bushing & Guard. This Box is a replacement Component for sink faucets.