Which frit for my filter

1/16" frit fits:	ZUFR.5F
	ZBUFR.5F
	ZBUFR1.5F
	ZBRUFR1.5F
1/8" frit fits:	ZUFR1CF
	ZBUFR1CF
	ZUFR1F
	ZBUFR1F
	ZRUFR21F
	ZBRUFR21F
1/4" frit fits:	ZUFR2F
	ZBUFR2F
	ZRUFR41F
	ZBRUFR41F
	ZRUFR42F
	ZBRUFR42F