Reference for Kelim 30:4
צְלוֹחִית קְטַנָּה שֶׁנִּטַּל פִּיהָ, טְמֵאָה. וּגְדוֹלָה שֶׁנִּטַּל פִּיהָ, טְהוֹרָה. שֶׁל פַּלְיָטוֹן שֶׁנִּטַּל פִּיהָ, טְהוֹרָה, מִפְּנֵי שֶׁהִיא סוֹרַחַת אֶת הַיָּד. לְגִינִין גְּדוֹלִים שֶׁנִּטַּל פִּיהֶן, טְמֵאִין, מִפְּנֵי שֶׁהוּא מְתַקְּנָן לִכְבָשִׁין. וְהָאֲפַרְכֵּס שֶׁל זְכוּכִית, טְהוֹרָה. אָמַר רַבִּי יוֹסֵי, אַשְׁרַיִךְ כֵּלִים, שֶׁנִּכְנַסְתְּ בְּטֻמְאָה, וְיָצָאת בְּטָהֳרָה:
A small [glass] flask, the neck of which was removed, is [susceptible to being rendered] impure; and a large one, the neck of which was removed, is pure [i.e. insusceptible]. One of spikenard oil, the neck of which was removed, is pure, because it injures the hand. Large [glass] flagons whose necks have been removed are [susceptible to being rendered] impure, because one adapts them for holding pickled foods. A glass funnel is pure. Rabbi Yose said, "Joyous are you, Kelim, for you entered in impurity, and you departed in purity!"