The best replacement for pigtail is ponytail.

The best alternatives to pigtail are rated as following:
★★★★★  ponytail
★★★  chest tube
★★  direct connect
★  tonepros
★  callaham
  pleurx

Your alternative for pigtail is not listed? Suggest!
Speaking about pigtail, one probably shouldn't forget about wirenut.

Other search terms related to pigtail and their ratings are:
★★★★★ wirenut
★★★ wire nut
You have in mind a companion for pigtail and it is not yet here? Propose!



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pigtail
ponytail
chest tube