Thanks haha, I feel stupid now.It's in the regular iptables package:
tw@iris:~$ dpkg -L iptables | grep sbin/ip
/usr/sbin/iptables-apply
/usr/sbin/ip6tables-apply
/sbin/iptables
/sbin/ip6tables-save
/sbin/iptables-save
/sbin/iptables-restore
/sbin/ip6tables-restore
/sbin/ip6tables