This 4 oz plastic bottle is made of HDPE and has a 24-410 neck finish. HDPE provides a good moisture barrier, impact resistance, and chemical resistance. Cylinder round bottles have flat shoulders and a flat base.
The appropriate dip tube lengths are listed below.
Fine mist sprayer: 5 5/16 "
Lotion Pump: 5 1/16"
Treatment Pump: 5 1/16"