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Made to work with the Trio Castle houses like the TM-12 or PMC24 and the MSS-8 house, these subfloors lift the nesting material off the floor of the compartment. This allows water to drain away from the nestlings and keep the nest drier. Remember, a dry nest is a happy nest!

A pack of 12 subfloors fits your Mini-Castle (TM-12) perfectly.
When using with the Trio Castle (PMC-24) 2 packs must be purchased.