Only the support column and connections to the valve set and drain require assembly

The flange measures 2 inches in width

Maximum countertop mounting thickness is 2" (50mm) and contains a spacer for use with sink rim 3/4" (19mm) or greater

Simply pressfit

all-welded construction and 18-8 alloy stainless steel is employed

Zurn Backflow Preventer Repair Kit, For Use With Zurn Wilkins No. 114-975XL, 112-975XL, 2-975XL - RK114-975XLR ASI-Profile Only the support column andBackflow Preventer Repair Kit; For Use With: 112 975XL, 2 975XL, Zurn Wilkins No. 114 975XL; Includes: Diaphram, O ring Cover, O ring Relief Valve Stem, Relief Valve Seal Ring, Seal Ring