A: The 12 inch pads aren't listed with the 6 inch brush
A: Koblenz P-620A (model # 0060269), P-820A (model # 0060251) and P-2600A (model # 0020792). It also fits most 6 in. hard floor cleaners including Regina brand
A: This product has only been tested on the Koblenz & Regina line of product. We can't guarantee it will fit.
A: This product has only been tested on the Koblenz & Regina line of product. Without knowing more about your Shetland, it would be hard to say. I would reach out to the manufacturer for further information.