Rattleware Knock Boxes


Sold out. More stock expected soon

These stainless steel knock boxes are the ideal solution for removing used coffee grounds from your portafilter, and can be used stand-alone or mounted in-counter. Replaceable rubber bar cover reduces damage to your portafilters. Eliminates the risk of losing the filter down the garbage disposal or burning yourself. All made with sturdy 18/8 stainless steel. Featuring a welded metal bar for strong sides. Choose from a variety of finishes and shapes to match with your style.

Note that all options but the basic square come with a protective edge gasket made of molded rubber.

The knock box holders available (Powdercoated Steel, Maple and Stainless Steel) add strength to your knockbox while giving your counter a completed look.



Cutout Dimensions: 5.75" (14.5cm) Width x 6.25" (16cm) Length x 4" (10 cm) Depth.

These are the interior dimensions. We recommend that you receive the product and measure before cutting your counter.

The overall dimensions of the product are: (5.5" x 6" x 4") (14cm x 15.2cm x 10cm)



  • (6.25" x 7.5") (16cm x 19cm)

Type: Knock Boxes

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