Quadrabathe Check Valve K9 II The major difference is the

The major difference is the ease of maintenance

The Quadrabathe Single Bathing System allows you to use one shampoo or conditioner at a time

Standard cabinet color is almond

Includes 3 storage drawers and 1 spacious cabinet with adjustable shelf

and supports the use of hoses without sacrificing air volume

Quadrabathe Check Valve K9 II The major difference is theQuadrabathe Check Valve The Quadrabathe check valve is used if you place your shampoo higher than your tub. If the shampoo is overhead it will gravity drain into the mixing unit and you won't be able to rinse. The check valve is not needed if your shampoo is kept below the tub.