Westbrass D201-26 Air Gap Cap, Polished Chrome Standard air gap cap only 1-5/8 in. diameter 2-1/4 in. height Fits all standard air gap bodies Cap leaves lip of air gap body exposed when installed Polished Brass Polished Nickel Satin Nickel Oil Rubbed Bronze Stainless Steel Polished Chrome White Matte Black Antique Copper