Watts - 0888521 - 2nd Check Repair Kit for 3/4 Inch Reduced Pressure Zone Assembly Series 009M3 48205 Houzer lists the interior bowl

Houzer lists the interior bowl at 7 inches deep

and local installation practices

Rinnai cover enclosure in European White color for ultra series tankless water heaters

Does G-300U SLATE have faucet holes

NEMA Type 1 is a general-purpose indoor enclosure

Watts - 0888521 - 2nd Check Repair Kit for 3/4 Inch Reduced Pressure Zone Assembly Series 009M3 48205 Houzer lists the interior bowlThis WATTS 0888521 Second Check Repair Kit for 3 4 Inch Reduced Pressure Zone Assembly Series 009M3 is a direct replacement manufactured by Watts. Includes: check assembly and cover O ring Application: Replacement Part Used With: 3 4" 009 Product Type: 2nd Check Repair Kit