Keilim24: 3
שָׁלֹשׁ עֲרֵבוֹת הֵן: עֲרֵבָה מִשְּׁנֵי לֹג וְעַד תִּשְׁעָה קַבִּין שֶׁנִּסְדְּקָה — טְמֵאָה מִדְרָס. שְׁלֵמָה — טְמֵאָה טְמֵא מֵת. וְהַבָּאָה בַּמִּדָּה — טְהוֹרָה מִכְּלוּם.
There are three troughs: A trough [with a capacity of] between two logs and nine kavs that developed a crack [is susceptible to becoming] tamei with midras [tumah]. An intact [trough is susceptible to becoming] tamei with corpse-tumah. And [a trough] of great proportions is tahor from any [form of tumah].
Keilim24: 4
שָׁלֹשׁ תֵּבוֹת הֵן: תֵּבָה שֶׁפִּתְחָהּ מִצִּדָּהּ — טְמֵאָה מִדְרָס. מִלְמַעְלָן — טְמֵאָה טְמֵא מֵת. וְהַבָּאָה בַּמִּדָּה — טְהוֹרָה מִכְּלוּם.
There are three chests: A chest whose opening is on its side [is susceptible to becoming] tamei with midras [tumah]. [A chest whose opening is] on top [is susceptible to becoming] tamei with corpse-tumah. And [a chest] of great proportions is tahor from any [form of tumah].