Quotation על שבת 224:6

All [wooden] vessels that belong to householder [become clean if the holes in them are] the size of pomegranates. Rabbi Eliezer says: [the size of the hole depends] on what it is used for. Gardeners’ vegetable baskets [become clean if the holes in them are] the size of bundles of vegetables. Baskets of householders [become clean if the holes in them are] the size of [bundles] of straws. Those of bath-keepers, if bundles of chaff [will drop through]. Rabbi Joshua says: in all these the size is that of pomegranates.